IST to UTC Time Converter
Coordinated Universal Time (UTC) is currently 5 hours 30 minutes behind India Standard Time (IST). IST is UTC+5:30 and UTC is UTC+0. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 2:30 PM and 5:00 PM in IST, which is 9:00 AM to 11:30 AM in UTC.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: IST to UTC
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
IST and UTC are fixed offsets, so the difference between them never changes.
This page covers India Standard Time, UTC+5:30, which has no daylight saving. IST can also refer to Irish Standard Time (UTC+1) or Israel Standard Time (UTC+2).
UTC is the global time standard. It has no daylight saving and never shifts.
Frequently Asked Questions
How many hours behind is UTC compared to IST?
UTC is currently 5 hours 30 minutes behind IST. IST and UTC are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in IST in UTC?
9:00 AM in IST is 3:30 AM in UTC.
What is the best time for a call between IST and UTC?
Both sides are inside 9:00 AM to 5:00 PM office hours between 2:30 PM and 5:00 PM in IST, which is 9:00 AM to 11:30 AM in UTC.