Current Time in IST
Indian Standard Time
About IST Indian Standard Time
The standard time observed throughout India and Sri Lanka. It is notable for its half-hour offset from UTC. India does not observe daylight saving time, so IST is used year-round.
UTC Offset: +05:30
IST at a glance
| Right now | 23:17 on Tuesday |
|---|---|
| UTC offset | UTC+05:30 (5 hours and 30 minutes ahead of UTC) |
| Full name | Indian Standard Time |
| Countries | 1 |
| IANA zones | 2 |
What is IST?
IST is a time zone that is currently UTC+05:30 - that's 5 hours and 30 minutes ahead of UTC. Its full name is Indian Standard Time. Right now the local time on IST is 23:17. Today 1 country (including India) and 2 IANA database zones sit at this offset, which is why IST is a useful shorthand even though the exact local rules differ from place to place.
How to convert IST to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 17:30 local time, and 09:00 local time = 03:30 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use IST?
IST is used across India. Open a country to see all of its cities and their local time.
IANA time zones in IST
IST maps to the IANA database zones Asia/Calcutta and Asia/Kolkata. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? IST is 5 hours and 30 minutes ahead of UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
IST - Frequently asked questions
What is IST?
IST is a time zone currently UTC+05:30 (5 hours and 30 minutes ahead of UTC). Its full name is Indian Standard Time.
What is the UTC offset of IST?
IST is UTC+05:30 right now - 5 hours and 30 minutes ahead of UTC.
Which countries are on IST?
IST is used in India.
What time is it in IST now?
The current time on IST is 23:17 on Tuesday. The clock above updates every second.
How Alarm.now explains IST
Abbreviation, offset, and IANA zones
IST is shown as a time-zone group for Indian Standard Time with offset +05:30. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.