Time in Sri Lanka since is officially represented by the Sri Lanka Standard Time (SLST, UTC+05:30).
Historic UTC offsets were: UTC+05:30 UTC+06:00 UTC+06:30
Daylight saving time In history daylight saving time was used too.
IANA time zone database The IANA time zone database contains one zone for Sri Lanka in the file zone.tab, named Asia/Colombo.
See also Sri Lanka Standard Time
External links Official website for Sri Lanka Standard Time