diff --git a/core/templatetags/duration.py b/core/templatetags/duration.py
index 75bd2cf8..81505669 100644
--- a/core/templatetags/duration.py
+++ b/core/templatetags/duration.py
@@ -108,9 +108,9 @@ def dayssince(value, today=None):
     delta = today - value
 
     if delta < datetime.timedelta(days=1):
-        return "today"
+        return _("today")
     if delta < datetime.timedelta(days=2):
-        return "yesterday"
+        return _("yesterday")
 
     # use standard timesince for anything beyond yesterday
-    return str(delta.days) + " days ago"
+    return str(delta.days) + _(" days ago")
diff --git a/locale/zh/LC_MESSAGES/django.mo b/locale/zh/LC_MESSAGES/django.mo
index b246a46b..501875b5 100644
Binary files a/locale/zh/LC_MESSAGES/django.mo and b/locale/zh/LC_MESSAGES/django.mo differ
diff --git a/locale/zh/LC_MESSAGES/django.po b/locale/zh/LC_MESSAGES/django.po
index c06f3d72..88c40874 100644
--- a/locale/zh/LC_MESSAGES/django.po
+++ b/locale/zh/LC_MESSAGES/django.po
@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Baby Buddy\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-06-04 03:37+0000\n"
+"POT-Creation-Date: 2022-06-07 06:48+0000\n"
 "Language: zh-Hans\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
@@ -1559,6 +1559,20 @@ msgstr "{}, {}"
 msgid "0 days"
 msgstr "0天"
 
+#: core/templatetags/duration.py:111
+#: dashboard/templates/cards/diaperchange_types.html:49
+msgid "today"
+msgstr "今天"
+
+#: core/templatetags/duration.py:113
+#: dashboard/templates/cards/diaperchange_types.html:51
+msgid "yesterday"
+msgstr "昨天"
+
+#: core/templatetags/duration.py:116
+msgid " days ago"
+msgstr "天之前"
+
 #: core/timeline.py:53
 #, python-format
 msgid "%(child)s started tummy time!"
@@ -1694,14 +1708,6 @@ msgstr "小便"
 msgid "solid"
 msgstr "大便"
 
-#: dashboard/templates/cards/diaperchange_types.html:49
-msgid "today"
-msgstr "今天"
-
-#: dashboard/templates/cards/diaperchange_types.html:51
-msgid "yesterday"
-msgstr "昨天"
-
 #: dashboard/templates/cards/diaperchange_types.html:53
 #, python-format
 msgid "%(key)s days ago"