Zone & HourSGT to IST Time Converter
IST is 2 hours and 30 minutes behind of SGT.
SGT: Singapore Time, UTC+08:00.
IST: India Standard Time, UTC+05:30.
For a city that changes clocks, use the date-aware city converter.
Check the abbreviation before converting
IST can also mean Irish Standard Time (UTC+01:00) or Israel Standard Time (UTC+02:00). This page always uses India.
Convert a time
9:00 AM SGT = 6:30 AM IST (same day)
24-hour SGT to IST conversion table
These are fixed-offset examples. They apply whenever the two abbreviations have the exact meanings stated above.
| SGT · UTC+08:00 | IST · UTC+05:30 | Day |
|---|---|---|
| 12:00 AM | 9:30 PM | Previous day |
| 1:00 AM | 10:30 PM | Previous day |
| 2:00 AM | 11:30 PM | Previous day |
| 3:00 AM | 12:30 AM | Same day |
| 4:00 AM | 1:30 AM | Same day |
| 5:00 AM | 2:30 AM | Same day |
| 6:00 AM | 3:30 AM | Same day |
| 7:00 AM | 4:30 AM | Same day |
| 8:00 AM | 5:30 AM | Same day |
| 9:00 AM | 6:30 AM | Same day |
| 10:00 AM | 7:30 AM | Same day |
| 11:00 AM | 8:30 AM | Same day |
| 12:00 PM | 9:30 AM | Same day |
| 1:00 PM | 10:30 AM | Same day |
| 2:00 PM | 11:30 AM | Same day |
| 3:00 PM | 12:30 PM | Same day |
| 4:00 PM | 1:30 PM | Same day |
| 5:00 PM | 2:30 PM | Same day |
| 6:00 PM | 3:30 PM | Same day |
| 7:00 PM | 4:30 PM | Same day |
| 8:00 PM | 5:30 PM | Same day |
| 9:00 PM | 6:30 PM | Same day |
| 10:00 PM | 7:30 PM | Same day |
| 11:00 PM | 8:30 PM | Same day |
What SGT and IST mean
SGT: Singapore Time
Singapore currently uses UTC+08:00 throughout the year, without a seasonal clock change. A representative location is Singapore, whose IANA identifier is Asia/Singapore.
IST: India Standard Time
IST here means India Standard Time, UTC+05:30. India does not currently change clocks seasonally. A representative location is Kolkata / Mumbai, whose IANA identifier is Asia/Kolkata.
Common conversion examples
- 6:00 AM SGT becomes 3:30 AM IST.
- 9:00 AM SGT becomes 6:30 AM IST.
- 12:00 PM SGT becomes 9:30 AM IST.
- 6:00 PM SGT becomes 3:30 PM IST.
- 9:00 PM SGT becomes 6:30 PM IST.
Frequently asked questions
Does this table change for daylight saving?
No. The offsets attached to these abbreviations stay fixed. A city may switch to a differently named abbreviation. SGT is not a daylight-saving designation in the interpretation used here.
Should I put an abbreviation in a meeting invitation?
Use an IANA city time zone and a full date. Abbreviations are useful shorthand when everyone agrees on the meaning, but they do not carry the complete rules that a calendar needs for recurring events.
Why can the day change?
The difference is 150 minutes. Adding or subtracting that amount can move the destination time before midnight or beyond the end of the source day. The last column makes that change explicit.