Kolkata to UTC Time

Kolkata is 5 hours 30 minutes ahead of UTC.

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Tap a city name to search and change it (partial names work). Drag the timeline (12 hours in view, scrolls forever). Keyboard: ← → , PgUp / PgDn 1 hour, Home = now.

Kolkata time to UTC time

Kolkata is 5 hours 30 minutes ahead of UTC. When it is 9:00 AM in Kolkata, India, it is 3:30 AM in UTC. Standard 9 AM to 6 PM working hours overlap for 3 hours 30 minutes: 2:30 PM to 6:00 PM in Kolkata (9:00 AM to 12:30 PM in UTC).

Time difference

5 hours 30 minutes (Kolkata ahead). Kolkata uses IST; UTC uses UTC.

Working-hours overlap

3 hours 30 minutes of shared 9 AM to 6 PM hours.

Daylight saving

No clock changes in either city.

Kolkata to UTC time conversion table

Times for Fri, Oct 9, 2026. Highlighted rows fall within 9 AM to 6 PM in both cities. Drag the live converter above for any other date.
Kolkata (IST)UTC (UTC)
12:00 AM6:30 PM (previous day)
1:00 AM7:30 PM (previous day)
2:00 AM8:30 PM (previous day)
3:00 AM9:30 PM (previous day)
4:00 AM10:30 PM (previous day)
5:00 AM11:30 PM (previous day)
6:00 AM12:30 AM
7:00 AM1:30 AM
8:00 AM2:30 AM
9:00 AM3:30 AM
10:00 AM4:30 AM
11:00 AM5:30 AM
12:00 PM6:30 AM
1:00 PM7:30 AM
2:00 PM8:30 AM
3:00 PM9:30 AM
4:00 PM10:30 AM
5:00 PM11:30 AM
6:00 PM12:30 PM
7:00 PM1:30 PM
8:00 PM2:30 PM
9:00 PM3:30 PM
10:00 PM4:30 PM
11:00 PM5:30 PM

Daylight saving time

Neither Kolkata nor UTC changes clocks for daylight saving time, so the 5 hours 30 minutes difference holds all year.

How to use the meeting time converter

  1. Select either city name and search by city, time zone, abbreviation, or UTC offset.
  2. Drag the horizontal timeline, or use the arrow and Page Up/Page Down keys, to choose a moment.
  3. Read the matching time and date for both locations and use the color bands to compare working hours.

Frequently asked questions

What is the time difference between Kolkata and UTC?

Kolkata is 5 hours 30 minutes ahead of UTC. Kolkata currently uses IST and UTC uses UTC.

When it is 9 AM in Kolkata, what time is it in UTC?

It is 3:30 AM in UTC.

What is the best time for a meeting between Kolkata and UTC?

Standard 9 AM to 6 PM working hours overlap for 3 hours 30 minutes: 2:30 PM to 6:00 PM in Kolkata (9:00 AM to 12:30 PM in UTC).

Does daylight saving time affect Kolkata and UTC?

Neither Kolkata nor UTC changes clocks for daylight saving time, so the 5 hours 30 minutes difference holds all year.

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