🇸🇬 Singapore to Kolkata (India) 🇮🇳 time converter

Convert any time from Singapore (SGT) to Kolkata (India) (IST), with daylight saving handled correctly for the date you choose.

Kolkata (India) is currently 2.5 hours behind Singapore.
Singapore: Sun, Jun 21, 2026, 2:29 AM UTC+08:00 (GMT+8) · Kolkata (India): Sat, Jun 20, 2026, 11:59 PM UTC+05:30 (GMT+5:30)
SingaporeKolkata (India)21h03h09h15h
Singapore 00h → 23hblue/green = 9am–6pm working hoursKolkata (India) local hour

Convert Singapore to Kolkata (India) on any date

Get this conversion as JSON (developer API)
curl "https://tz.wrapper-agency.com/api/v1/tz?from=Asia%2FSingapore&to=Asia%2FKolkata&time=2008-11-04T09%3A00"

Free timezone API — no key during beta. DST-correct, IANA tz database.

Current offsets

🇸🇬 SingaporeUTC+08:00
🇮🇳 Kolkata (India)UTC+05:30
Difference−2.5h

FAQ

What time is it in Kolkata (India) when it's noon in Singapore?
Use the converter above — enter 12:00 on your date in Singapore and you'll get the exact Kolkata (India) local time, DST included.
Why does the time difference change during the year?
Singapore and Kolkata (India) may observe daylight saving on different schedules (or not at all), so the gap between them shifts on clock-change dates.