From dfd200df0fac84adbfed68f269e3bfe9b1960f04 Mon Sep 17 00:00:00 2001
From: M66B <M66B@users.noreply.github.com>
Date: Mon, 19 Sep 2022 11:33:04 +0200
Subject: [PATCH] ISO compliant week notation

---
 app/src/main/java/eu/faircode/email/FragmentMessages.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/faircode/email/FragmentMessages.java b/app/src/main/java/eu/faircode/email/FragmentMessages.java
index 5cf4116347..357e818330 100644
--- a/app/src/main/java/eu/faircode/email/FragmentMessages.java
+++ b/app/src/main/java/eu/faircode/email/FragmentMessages.java
@@ -1026,7 +1026,7 @@ public class FragmentMessages extends FragmentBase
                 StringBuilder sb = new StringBuilder();
                 Calendar cal = Calendar.getInstance();
                 cal.setTimeInMillis(time);
-                sb.append(cal.get(Calendar.YEAR)).append('-').append(cal.get(Calendar.WEEK_OF_YEAR));
+                sb.append(cal.get(Calendar.YEAR)).append("-W").append(cal.get(Calendar.WEEK_OF_YEAR));
                 cal.set(Calendar.DAY_OF_WEEK, 1);
                 sb.append(' ').append(Helper.getDateInstance(context).format(cal.getTimeInMillis()));
                 return sb.toString();