CHADT (Chatham Daylight Time) is one of the well-known names of UTC+13:45 time zone which is 13:45h. ahead of UTC (Coordinated Universal Time).The time offset from UTC can be written as +13:45.
It's used as a DST (summer daylight saving time).During the winter, CHAST - Chatham Standard Time(UTC+12:45) is in use.
Time difference to GMT/UTC
Iana Timezones where CHADT is currently observed