2018 Time Zones - Kolkata
The graph above shows that there is no clock change in Kolkata during 2018.
Note that Kolkata uses a special half-hour time zone.
Time Changes in Kolkata Over the Years
Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.
|Year||Date & Time||Abbreviation||Time Change||Offset After|
|1925 — 1940||No changes, UTC +5:53:20 hours all of the period|
|1941||Wed, Oct 1 at 12:00 am||HMT → BURT||+0:36:40 hours (TZ change)||UTC+6:30h|
|1942||Fri, May 15 at 12:00 am||BURT → IST||-1 hour (TZ change)||UTC+5:30h|
|Tue, Sep 1 at 12:00 am||IST (not changed)||+1 hour (DST start)||UTC+6:30h|
|1943 — 1944||No changes, UTC +6:30 hours all of the period|
|1945||Mon, Oct 15 at 12:00 am||IST (not changed)||-1 hour (DST end)||UTC+5:30h|
|1946 — 1949||No changes, UTC +5:30 hours all of the period|
|* All times are local Kolkata time.|