IST to UTC converter
India Standard Time (IST) is typically 5½ hours ahead of Coordinated Universal Time (UTC).
India Standard Time → Coordinated Universal Time, hour by hour below.
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India Standard Time (IST) is UTC+5:30 with no daylight saving. It covers Mumbai, Delhi, Bengaluru and Chennai.
Coordinated Universal Time (UTC) is UTC+0 with no daylight saving. It covers the global reference used in aviation, computing and science.
Coordinated Universal Time is typically 5½ hours behind India Standard Time, all year round; neither zone observes daylight saving.
Time difference between India Standard Time and Coordinated Universal Time
Coordinated Universal Time is typically 5½ hours behind India Standard Time, all year round; neither zone observes daylight saving. Put the other way around: coordinated Universal Time (UTC) is typically 5½ hours behind India Standard Time (IST). The table above shows the difference hour by hour using today's actual offsets.
Best time to call Coordinated Universal Time from India Standard Time
Office hours overlap for about 2.5 hours a day: 2:30 PM–5:00 PM in India Standard Time is 9:00 AM–11:30 AM in Coordinated Universal Time. Book calls inside this window and nobody is out of hours.
IST to UTC, hour by hour
Today's actual offsets. Rows where both zones are inside 9am–5pm working hours are highlighted.