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diff --git a/Completion/Unix/Type/_date_formats b/Completion/Unix/Type/_date_formats
new file mode 100644
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+++ b/Completion/Unix/Type/_date_formats
@@ -0,0 +1,80 @@
+#autoload
+
+local -a specs
+local exps bs
+
+if [[ -z $compstate[quote] ]]; then
+  bs='\'
+fi
+
+false
+if [[ $PREFIX == *%(|[-EO]|<->) ]]; then
+  specs=()
+  if [[ $PREFIX != *<-> ]]; then
+    specs+=(
+      'a:abbreviated day name'
+      'A:full day name'
+      'b:abbreviated month name'
+      'B:full month name'
+      'c:preferred locale date and time'
+      'C:2-digit century'
+      'd:day of month (01-31)'
+      'D:american format month/day/year (%m/%d/%y)'
+      'e:day of month ( 1-31)'
+      'E:alternate representation'
+      'F:ISO 8601 year-month-date (%Y-%m-%d)'
+      'G:4-digit ISO 8601 week-based year'
+      'g:2-digit ISO 8601 week-based year'
+      'h:abbreviated month name'
+      'H:hour (00-23)'
+      'I:hour (01-12)'
+      'j:day of year (001-366)'
+      'k:hour ( 1-23)'
+      'l:hour ( 1-12)'
+      'm:month (01-12)'
+      'M:minute (00-59)'
+      'n:newline'
+      'O:alternative format modifier'
+      'p:locale dependent AM/PM'
+      'P:lower case locale dependent am/pm'
+      'r:locale dependent a.m. or p.m. time (%I:%M:%S %p)'
+      'R:24-hour notation time (%H:%M)'
+      's:seconds since the epoch'
+      'S:seconds (00-60)'
+      't:tab'
+      'T:24-hour notation with seconds (%H:%M:%S)'
+      'u:day of week (1-7, 1=monday)'
+      'U:week number of current year, sunday based (00-53)'
+      'V:ISO 8601 week number of current year, week 1 has 4 days in current year (01-53)'
+      'w:day of week (0-6, 0=sunday)'
+      'W:week number of current year, monday based (00-53)'
+      'x:locale dependent date representation without time'
+      'X:locale dependent time representation without date'
+      'y:2-digit year (00-99)'
+      'Y:full year'
+      'z:UTC offset'
+      'Z:timezone name'
+      '%:A %'
+      '-:strip leading space or zero (gnu extension)'
+    )
+    if [[ $1 == zsh ]]; then
+      specs+=(
+        'f:day of month (1-31)'
+        'K:hour (0-23)'
+        'L:hour (0-12)'
+      )
+    fi
+  fi
+  if [[ $1 == zsh ]]; then
+    specs+=(
+      '.:fractional part of seconds since epoch'
+    )
+  fi
+  compset -P "*"
+  _describe -t date-format-specifier 'date format specifier' specs -S ''
+  _message -e date-format-precision 'precision for %%. (1-6)'
+else
+  _default "$@"
+  compset -P "*"
+  _describe -t date-format-specifier 'date format specifier' '(%)' -S ''
+fi