time-util: add note about on DST change

2023-03-13 04:43:51 +09:00
parent 6bed374280
commit 37c6a3dc1a
1 changed files with 3 additions and 0 deletions
@@ -662,6 +662,9 @@ static int parse_timestamp_impl(
         *   +5min
         *   -5days
         *   @2147483647          (seconds since epoch)
+         *
+         * Note, on DST change, 00:00:00 may not exist and in that case the time part may be shifted.
+         * E.g. "Sun 2023-03-13 America/Havana" is parsed as "Sun 2023-03-13 01:00:00 CDT".
         */

        assert(t);