Add a setting to choose date format

locale/mail.de.tr

@@ -14,42 +14,22 @@ Cancel=Abbrechen
 Save draft=Entwurf speichern
 Send=Senden
 No contacts=Keine Kontakte
-Edit=Bearbeiten
+Name=Name
 No drafts=Keine Entwürfe
+Edit=Bearbeiten
+To=An
 Player name=Spielername
 That name is already in your contacts=Dieser Name ist bereits in Ihren Kontakten
 The contact name cannot be empty.=Der Kontaktname kann nicht leer sein.
 Note=Anmerkung
-Back=Zurück
-Save=Speichern
 Maillist name=Verteilerlistenname
 Desc=Beschreibung
 Players=Spieler
 That name is already in your mailing lists.=Dieser Name ist bereits in Ihren Verteilerlisten.
 The mailing list name cannot be empty.=Der Verteilerlistenname kann nicht leer sein.
+Back=Zurück
 Mark Read=Als gelesen makieren
 Mark Unread=Als ungelesen makieren
-Reply=Antworten
-Reply all=Allen antworten
-Forward=Weiterleiten
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=Von
-Filter=Filter
-Allow multiple selection=Mehrfachauswahl zulassen
-@1 of @2 selected=@1 von @2 ausgewählt
-(Un)select all=Alle aus-/abwählen
-No mail=Keine Nachrichten
-Subject=Betreff
-New=Neu
-Delete=Löschen
-Date=Datum
-(No description)=(Keine Beschreibung)
-No maillist=Keine Verteilerliste
-Receivers=Empfänger
-You have mail! Type /mail to read=Sie haben Post! „/mail“ eingeben zum Lesen
-Read=Lesen
 Trash=Papierkorb
 Inbox=Posteingang
 Outbox=Senden
@@ -59,10 +39,29 @@ Mail lists=Verteilerlisten
 Options=Einstellungen
 Close=Schließen
 (No subject)=(Kein Betreff)
-To=An
+Subject=Betreff
+Delete=Löschen
+New=Neu
+Date=Datum
+Filter=Filter
+Allow multiple selection=Mehrfachauswahl zulassen
+@1 of @2 selected=@1 von @2 ausgewählt
+(Un)select all=Alle aus-/abwählen
+No mail=Keine Nachrichten
+Reply=Antworten
+Reply all=Allen antworten
+Forward=Weiterleiten
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=Lesen
+From=Von
+(No description)=(Keine Beschreibung)
+No maillist=Keine Verteilerliste
+Receivers=Empfänger
+You have mail! Type /mail to read=Sie haben Post! „/mail“ eingeben zum Lesen
 Add=Hinzufügen
 Remove=Entfernen
-Name=Name
 CC=CC
 Notifications=Benachrichtigungen
 Chat notifications=Chat-Benachrichtigungen
@@ -76,6 +75,7 @@ Default sorting fields=Standardsortierfelder
 Other=Anderes
 Move deleted messages to trash=Gelöschte Nachrichten in den Papierkorb verschieben
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=Zurücksetzen
 Settings=Einstellungen
 About=Über
+Save=Speichern
 Ascending=Aufsteigend
 Descending=Absteigend
 From/To=Von/An

locale/mail.es.tr

@@ -14,42 +14,22 @@ Cancel=Cancelar
 Save draft=Guardar borrador
 Send=Enviar
 No contacts=
-Edit=Editar
+Name=Nombre
 No drafts=No hay borradores
+Edit=Editar
+To=Para
 Player name=Nombre del jugador
 That name is already in your contacts=Ese nombre ya está en tus contactos
 The contact name cannot be empty.=Ese nombre de contacto no puede estar vacío.
 Note=Nota
-Back=Volver
-Save=Guardar
 Maillist name=Nombre de la lista de correo
 Desc=Desc
 Players=Jugadores
 That name is already in your mailing lists.=Ese nombre ya está entus listas de correo.
 The mailing list name cannot be empty.=Ese nombre de lista de correo no puede estar vacío.
+Back=Volver
 Mark Read=Marcar como leído
 Mark Unread=Marcar como no leído
-Reply=Responder
-Reply all=Responder a todos
-Forward=Reenviar
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=De
-Filter=Filtrar
-Allow multiple selection=Permitir selección múltiple
-@1 of @2 selected=
-(Un)select all=(Des)seleccionar todos
-No mail=Sin correo
-Subject=Asunto
-New=Nuevo
-Delete=Borrar
-Date=Fecha
-(No description)=(Sin descripción)
-No maillist=Sin lista de correo
-Receivers=
-You have mail! Type /mail to read=
-Read=Leído
 Trash=
 Inbox=Entrada
 Outbox=Enviados
@@ -59,10 +39,29 @@ Mail lists=Listas de correo
 Options=
 Close=Cerrar
 (No subject)=(Sin asunto)
-To=Para
+Subject=Asunto
+Delete=Borrar
+New=Nuevo
+Date=Fecha
+Filter=Filtrar
+Allow multiple selection=Permitir selección múltiple
+@1 of @2 selected=
+(Un)select all=(Des)seleccionar todos
+No mail=Sin correo
+Reply=Responder
+Reply all=Responder a todos
+Forward=Reenviar
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=Leído
+From=De
+(No description)=(Sin descripción)
+No maillist=Sin lista de correo
+Receivers=
+You have mail! Type /mail to read=
 Add=Añadir
 Remove=Quitar
-Name=Nombre
 CC=CC
 Notifications=
 Chat notifications=
@@ -76,6 +75,7 @@ Default sorting fields=
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=
 Settings=
 About=Acerca de
+Save=Guardar
 Ascending=Ascendente
 Descending=Descendiente
 From/To=De/Para

locale/mail.fr.tr

@@ -14,42 +14,22 @@ Cancel=Annuler
 Save draft=Enregistrer le brouillon
 Send=Envoyer
 No contacts=Aucun contact
-Edit=Modifier
+Name=Nom
 No drafts=Aucun brouillon
+Edit=Modifier
+To=À
 Player name=Nom du joueur
 That name is already in your contacts=Ce nom est déjà dans vos contacts
 The contact name cannot be empty.=Le nom du contact ne peut pas être vide.
 Note=Note
-Back=Retour
-Save=Sauvegarder
 Maillist name=Nom de la liste de diffusion
 Desc=Desc
 Players=Joueurs
 That name is already in your mailing lists.=Ce nom est déjà présent dans vos listes de diffusion.
 The mailing list name cannot be empty.=Le nom de la liste de diffusion ne peut pas être vide.
+Back=Retour
 Mark Read=Marquer comme lu
 Mark Unread=Marquer non lu
-Reply=Répondre
-Reply all=Répondre à tous
-Forward=Transférer
-Reply only to the sender=Répondre uniquement à l'expéditeur
-Reply to all involved people=Répondre à toutes les personnes concernées
-Transfer message to other people=Transférer le message à d'autres personnes
-From=De
-Filter=Filtre
-Allow multiple selection=Autoriser la sélection multiple
-@1 of @2 selected=@1 sur @2 sélectionnés
-(Un)select all=Tout (dé)selectionner
-No mail=Aucun mail
-Subject=Objet
-New=Nouveau
-Delete=Supprimer
-Date=Date
-(No description)=Sans description
-No maillist=Aucune liste de diffusion
-Receivers=Destinataires
-You have mail! Type /mail to read=Vous avez reçu un mail ! Entrez /mail pour le consulter
-Read=Lire
 Trash=Corbeille
 Inbox=Boîte de réception
 Outbox=Envoyés
@@ -59,10 +39,29 @@ Mail lists=Listes de diffusion
 Options=Options
 Close=Fermer
 (No subject)=(Sans objet)
-To=À
+Subject=Objet
+Delete=Supprimer
+New=Nouveau
+Date=Date
+Filter=Filtre
+Allow multiple selection=Autoriser la sélection multiple
+@1 of @2 selected=@1 sur @2 sélectionnés
+(Un)select all=Tout (dé)selectionner
+No mail=Aucun mail
+Reply=Répondre
+Reply all=Répondre à tous
+Forward=Transférer
+Reply only to the sender=Répondre uniquement à l'expéditeur
+Reply to all involved people=Répondre à toutes les personnes concernées
+Transfer message to other people=Transférer le message à d'autres personnes
+Read=Lire
+From=De
+(No description)=Sans description
+No maillist=Aucune liste de diffusion
+Receivers=Destinataires
+You have mail! Type /mail to read=Vous avez reçu un mail ! Entrez /mail pour le consulter
 Add=Ajouter
 Remove=Enlever
-Name=Nom
 CC=Cc
 Notifications=Notifications
 Chat notifications=Notifications dans le tchat
@@ -76,6 +75,7 @@ Default sorting fields=Champs de tri par défaut
 Other=Autre
 Move deleted messages to trash=Supprimer les messages dans la corbeille
 Automatic marking read=Lu automatique
+Date format:=Format de la date :
 Receive a message in the chat when there is a new message=Recevoir un message dans le tchat lorsqu'un nouveau message est reçu
 Receive a message at login when inbox isn't empty=Recevoir un message à la connexion lorsque la boîte de réception n'est pas vide
 Show an HUD notification when inbox isn't empty=Indiquer dans l'ATH que la boîte de réception n'est pas vide
@@ -84,6 +84,7 @@ Mark a message as read when opened=Marquer un message comme lu lorsqu'il est ouv
 Reset=Réinitialiser
 Settings=Paramètres
 About=À propos
+Save=Sauvegarder
 Ascending=Croissant
 Descending=Décroissant
 From/To=De/À

locale/mail.hu.tr

@@ -14,42 +14,22 @@ Cancel=Mégse
 Save draft=mentés piszkozatként
 Send=Küldés
 No contacts=
-Edit=Szerkesztés
+Name=Név
 No drafts=Nincsenek piszkozatok
+Edit=Szerkesztés
+To=Neki
 Player name=Játékos neve
 That name is already in your contacts=A név már a kontaktok között van
 The contact name cannot be empty.=A contakt neve nem lehet üres.
 Note=Jegyzet
-Back=Visza
-Save=Mentés
 Maillist name=Levelező lista neve
 Desc=Desc
 Players=Játékosok
 That name is already in your mailing lists.=A név már benne van a levelező listában
 The mailing list name cannot be empty.=A levelező lista neve nem lehet üres
+Back=Visza
 Mark Read=Jelöld olvasottként
 Mark Unread=Jelöld olvasatlanul
-Reply=Válasz
-Reply all=Válaszmindenkinek
-Forward=Továbbítás
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=Tőle
-Filter=Filterek
-Allow multiple selection=
-@1 of @2 selected=
-(Un)select all=(ne válaszd ki) mindegyik választása
-No mail=Nincs levél
-Subject=Cím
-New=Új
-Delete=Törlés
-Date=Dátum
-(No description)=(Nincs leírás)
-No maillist=Nincs levelező lista
-Receivers=
-You have mail! Type /mail to read=Van egy leveled! Írd /mail az olvasáshoz
-Read=Olvasott
 Trash=
 Inbox=PostaLáda
 Outbox=Elküldött
@@ -59,10 +39,29 @@ Mail lists=Levelező lista
 Options=Lehetőségek
 Close=Bezár
 (No subject)=(nincs cím)
-To=Neki
+Subject=Cím
+Delete=Törlés
+New=Új
+Date=Dátum
+Filter=Filterek
+Allow multiple selection=
+@1 of @2 selected=
+(Un)select all=(ne válaszd ki) mindegyik választása
+No mail=Nincs levél
+Reply=Válasz
+Reply all=Válaszmindenkinek
+Forward=Továbbítás
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=Olvasott
+From=Tőle
+(No description)=(Nincs leírás)
+No maillist=Nincs levelező lista
+Receivers=
+You have mail! Type /mail to read=Van egy leveled! Írd /mail az olvasáshoz
 Add=Hozzáadás
 Remove=Elvétel
-Name=Név
 CC=CC
 Notifications=Értesítések
 Chat notifications=Chates értesítések
@@ -76,6 +75,7 @@ Default sorting fields=Alap válogató terület
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=Viszaállítás
 Settings=Beállítások
 About=Róla
+Save=Mentés
 Ascending=Emelkedő
 Descending=Sűlyedő
 From/To=Tól(től)/neki

locale/mail.pt_BR.tr

@@ -14,42 +14,22 @@ Cancel=Cancelar
 Save draft=Salvar rascunho
 Send=Enviar
 No contacts=
-Edit=Editar
+Name=Nome
 No drafts=Sem rascunhos
+Edit=Editar
+To=Para
 Player name=Nome do jogador
 That name is already in your contacts=Esse nome já consta em sua lista de contatos
 The contact name cannot be empty.=Informe o nome do destinatário
 Note=Nota
-Back=Voltar
-Save=Salvar
 Maillist name=Nome da lista de discussão
 Desc=Descrição
 Players=Jogador
 That name is already in your mailing lists.=Esse nome ja está sendo usado em sua lista de discussões
 The mailing list name cannot be empty.=O nome da lista de discussões deve ser informado
+Back=Voltar
 Mark Read=Marcar como lido
 Mark Unread=Marcar como não lido
-Reply=Responder
-Reply all=Responder Todos
-Forward=Encaminhar
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=De
-Filter=Filtrar
-Allow multiple selection=Permitir selecionar vários
-@1 of @2 selected=
-(Un)select all=Desmarcar todos
-No mail=Sem e-mails no momento
-Subject=Assunto
-New=Novo
-Delete=Apagar
-Date=Data
-(No description)=(sem descrição)
-No maillist=Sem lista de discussão
-Receivers=
-You have mail! Type /mail to read=Você recebeu e-mail! Tecle /mail para ler
-Read=Ler
 Trash=
 Inbox=Entrada
 Outbox=Enviadas
@@ -59,10 +39,29 @@ Mail lists=Lista de correios
 Options=Opções
 Close=Fechar
 (No subject)=(Sem assunto)
-To=Para
+Subject=Assunto
+Delete=Apagar
+New=Novo
+Date=Data
+Filter=Filtrar
+Allow multiple selection=Permitir selecionar vários
+@1 of @2 selected=
+(Un)select all=Desmarcar todos
+No mail=Sem e-mails no momento
+Reply=Responder
+Reply all=Responder Todos
+Forward=Encaminhar
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=Ler
+From=De
+(No description)=(sem descrição)
+No maillist=Sem lista de discussão
+Receivers=
+You have mail! Type /mail to read=Você recebeu e-mail! Tecle /mail para ler
 Add=Adicionar
 Remove=Remover
-Name=Nome
 CC=CC
 Notifications=Notificações
 Chat notifications=Notificação de conversa
@@ -76,6 +75,7 @@ Default sorting fields=Ordenamento de campos padrão
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=
 Settings=Ajustes
 About=Sobre
+Save=Salvar
 Ascending=Ascendente
 Descending=Descendente
 From/To=De/Para

locale/mail.zh_CN.tr

@@ -14,43 +14,23 @@ Cancel=取消
 Save draft=保存草稿
 Send=发送
 No contacts=
-Edit=编辑
+Name=名字
 #if new means new mail, it would be New=新邮件
 No drafts=没有草稿
+Edit=编辑
+To=收件人
 Player name=玩家名字
 That name is already in your contacts=
 The contact name cannot be empty.=
 Note=备注
-Back=返回
-Save=保存
 Maillist name=建组名
 Desc=描述
 Players=玩家
 That name is already in your mailing lists.=
 The mailing list name cannot be empty.=
+Back=返回
 Mark Read=标记为已读
 Mark Unread=标记为未读
-Reply=回复
-Reply all=回复所有
-Forward=转发
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=发件人
-Filter=筛选
-Allow multiple selection=允许多选
-@1 of @2 selected=
-(Un)select all=(取消)选中所有
-No mail=无邮件
-Subject=主题
-New=新
-Delete=删除
-Date=时间
-(No description)=(无描述)
-No maillist=无建组
-Receivers=
-You have mail! Type /mail to read=
-Read=浏览
 Trash=
 Inbox=收件箱
 Outbox=已发送
@@ -60,10 +40,29 @@ Mail lists=建组
 Options=
 Close=关闭
 (No subject)=(无主题)
-To=收件人
+Subject=主题
+Delete=删除
+New=新
+Date=时间
+Filter=筛选
+Allow multiple selection=允许多选
+@1 of @2 selected=
+(Un)select all=(取消)选中所有
+No mail=无邮件
+Reply=回复
+Reply all=回复所有
+Forward=转发
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=浏览
+From=发件人
+(No description)=(无描述)
+No maillist=无建组
+Receivers=
+You have mail! Type /mail to read=
 Add=添加
 Remove=移除
-Name=名字
 CC=抄送
 Notifications=
 Chat notifications=
@@ -77,6 +76,7 @@ Default sorting fields=
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -85,6 +85,7 @@ Mark a message as read when opened=
 Reset=
 Settings=
 About=关于
+Save=保存
 Ascending=升序
 Descending=降序
 From/To=

locale/mail.zh_TW.tr

@@ -14,42 +14,22 @@ Cancel=取消
 Save draft=儲存草稿
 Send=發送
 No contacts=
-Edit=編輯
+Name=名稱
 No drafts=沒有草稿
+Edit=編輯
+To=收件人
 Player name=玩家名稱
 That name is already in your contacts=
 The contact name cannot be empty.=
 Note=備註
-Back=返回
-Save=儲存
 Maillist name=郵件列表名稱
 Desc=描述
 Players=玩家
 That name is already in your mailing lists.=
 The mailing list name cannot be empty.=
+Back=返回
 Mark Read=標記已讀
 Mark Unread=標記未讀
-Reply=回覆
-Reply all=回覆所有人
-Forward=轉寄
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=寄件者
-Filter=
-Allow multiple selection=
-@1 of @2 selected=
-(Un)select all=
-No mail=沒有郵件
-Subject=主旨
-New=新建
-Delete=刪除
-Date=日期
-(No description)=（沒有描述）
-No maillist=沒有郵件列表
-Receivers=
-You have mail! Type /mail to read=
-Read=閱讀
 Trash=
 Inbox=收件箱
 Outbox=寄件備份
@@ -59,10 +39,29 @@ Mail lists=郵件列表
 Options=
 Close=關閉
 (No subject)=（沒有主旨）
-To=收件人
+Subject=主旨
+Delete=刪除
+New=新建
+Date=日期
+Filter=
+Allow multiple selection=
+@1 of @2 selected=
+(Un)select all=
+No mail=沒有郵件
+Reply=回覆
+Reply all=回覆所有人
+Forward=轉寄
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=閱讀
+From=寄件者
+(No description)=（沒有描述）
+No maillist=沒有郵件列表
+Receivers=
+You have mail! Type /mail to read=
 Add=加入
 Remove=移除
-Name=名稱
 CC=副本
 Notifications=
 Chat notifications=
@@ -76,6 +75,7 @@ Default sorting fields=
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=
 Settings=
 About=關於
+Save=儲存
 Ascending=
 Descending=
 From/To=

locale/template.txt

@@ -14,42 +14,22 @@ Cancel=
 Save draft=
 Send=
 No contacts=
-Edit=
+Name=
 No drafts=
+Edit=
+To=
 Player name=
 That name is already in your contacts=
 The contact name cannot be empty.=
 Note=
-Back=
-Save=
 Maillist name=
 Desc=
 Players=
 That name is already in your mailing lists.=
 The mailing list name cannot be empty.=
+Back=
 Mark Read=
 Mark Unread=
-Reply=
-Reply all=
-Forward=
-Reply only to the sender=
-Reply to all involved people=
-Transfer message to other people=
-From=
-Filter=
-Allow multiple selection=
-@1 of @2 selected=
-(Un)select all=
-No mail=
-Subject=
-New=
-Delete=
-Date=
-(No description)=
-No maillist=
-Receivers=
-You have mail! Type /mail to read=
-Read=
 Trash=
 Inbox=
 Outbox=
@@ -59,10 +39,29 @@ Mail lists=
 Options=
 Close=
 (No subject)=
-To=
+Subject=
+Delete=
+New=
+Date=
+Filter=
+Allow multiple selection=
+@1 of @2 selected=
+(Un)select all=
+No mail=
+Reply=
+Reply all=
+Forward=
+Reply only to the sender=
+Reply to all involved people=
+Transfer message to other people=
+Read=
+From=
+(No description)=
+No maillist=
+Receivers=
+You have mail! Type /mail to read=
 Add=
 Remove=
-Name=
 CC=
 Notifications=
 Chat notifications=
@@ -76,6 +75,7 @@ Default sorting fields=
 Other=
 Move deleted messages to trash=
 Automatic marking read=
+Date format:=
 Receive a message in the chat when there is a new message=
 Receive a message at login when inbox isn't empty=
 Show an HUD notification when inbox isn't empty=
@@ -84,6 +84,7 @@ Mark a message as read when opened=
 Reset=
 Settings=
 About=
+Save=
 Ascending=
 Descending=
 From/To=

storage.lua

@@ -405,6 +405,7 @@ function mail.get_setting_default_value(setting_name)
 		defaultsortdirection = 1,
 		trash_move_enable = true,
 		auto_marking_read = true,
+		date_format = "%Y-%m-%d %X",
 	}
 	return default_values[setting_name]
 end

ui/message.lua

@@ -39,7 +39,7 @@ function mail.show_message(name, id)
 	local cc = minetest.formspec_escape(message.cc) or ""
 	if string.len(cc) > 50 then cc = string.sub(cc, 1, 47) .. "..." end
 	local date = type(message.time) == "number"
-		and minetest.formspec_escape(os.date("%Y-%m-%d %X", message.time)) or ""
+		and minetest.formspec_escape(os.date(mail.get_setting(name, "date_format"), message.time)) or ""
 	local subject = minetest.formspec_escape(message.subject) or ""
 	local body = minetest.formspec_escape(message.body) or ""
 	formspec = string.format(formspec, from, to, cc, date, subject, body)

ui/receivers.lua

@@ -31,7 +31,7 @@ function mail.show_receivers(name, id)
 	local cc_str = mail.colors.header .. "," .. S("CC") .. ",,"
 	cc_str = cc_str .. table.concat(cc, ",,")
 	local date = type(message.time) == "number"
-		and minetest.formspec_escape(os.date("%Y-%m-%d %X", message.time)) or ""
+		and minetest.formspec_escape(os.date(mail.get_setting(name, "date_format"), message.time)) or ""
 	formspec = string.format(formspec, from, date, to_str, cc_str)
 
 	minetest.show_formspec(name, FORMNAME, formspec)

ui/settings.lua

@@ -3,7 +3,19 @@ local S = minetest.get_translator("mail")
 
 local FORMNAME = "mail:settings"
 
+local date_formats = {"%Y-%m-%d %X", "%d/%m/%y %X", "%A %d %B %Y %X"}
+
 function mail.show_settings(name)
+    -- date formats prepare
+    local dates_now = {}
+    local previous_date_format = mail.get_setting(name, "date_format")
+    local date_dropdown_index = 1
+    for i, f in pairs(date_formats) do
+        table.insert(dates_now, os.date(f, os.time()))
+        if f == previous_date_format then date_dropdown_index = i end
+    end
+    local date_dropdown_str = table.concat(dates_now, ",")
+
 	local formspec = [[
 			size[10,6;]
 			tabheader[0.3,1;optionstab;]] .. S("Settings") .. "," .. S("About") .. [[;1;false;false]
@@ -41,6 +53,9 @@ function mail.show_settings(name)
             tostring(mail.get_setting(name, "trash_move_enable")) .. [[]
             checkbox[0,4.0;auto_marking_read;]] .. S("Automatic marking read") .. [[;]] ..
             tostring(mail.get_setting(name, "auto_marking_read")) .. [[]
+			label[0.31,4.7;]] .. S("Date format:") .. [[]
+            dropdown[2.7,4.6;4,0.5;date_format;]] .. date_dropdown_str .. [[;]] ..
+            tostring(date_dropdown_index) .. [[;true]
 
             tooltip[chat_notifications;]] .. S("Receive a message in the chat when there is a new message") .. [[]
             tooltip[onjoin_notifications;]] .. S("Receive a message at login when inbox isn't empty") .. [[]
@@ -109,10 +124,12 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
         mail.set_setting(playername, "trash_move_enable", mail.selected_idxs.trash_move_enable[playername])
         mail.set_setting(playername, "auto_marking_read", mail.selected_idxs.auto_marking_read[playername])
         -- dropdowns
-        local defaultsortfield = fields.defaultsortfield or mail.get_setting("defaultsortfield")
+        local defaultsortfield = fields.defaultsortfield or mail.get_setting(playername, "defaultsortfield")
-        local defaultsortdirection = fields.defaultsortdirection or mail.get_setting("defaultsortdirection")
+        local defaultsortdirection = fields.defaultsortdirection or mail.get_setting(playername, "defaultsortdirection")
+        local date_format = date_formats[tonumber(fields.date_format)] or mail.get_setting(playername, "date_format")
         mail.set_setting(playername, "defaultsortfield", tonumber(defaultsortfield))
         mail.set_setting(playername, "defaultsortdirection", tonumber(defaultsortdirection))
+        mail.set_setting(playername, "date_format", date_format)
         -- update visuals
         mail.hud_update(playername, mail.get_storage_entry(playername).inbox)
         mail.show_settings(playername)