From
GMT
London
Time Zone Converter
GMT to IST Time Zone Converter
Convert GMT to IST with a live clock, current time difference, UTC offsets, and work-hour overlap. IST is 4 hours 30 minutes ahead of GMT.
To
India Time
New Delhi
When it is 7:30 AM in GMT, it is 12:00 PM in India Time.
GMT to IST at a glance
India Time is 4 hours 30 minutes ahead of GMT. If someone gives you a time in GMT, move the clock by 4 hours 30 minutes to read it in India Time. A 9:00 AM start in London becomes 1:30 PM in New Delhi.
What GMT covers
GMT is commonly used as the United Kingdom time reference. In summer, the UK moves to British Summer Time. It is a familiar baseline for Europe, Africa, and global remote teams.
What India Time covers
India Time is used across all of India. It stays fixed year-round and is one of the most common South Asian reference clocks. It is widely used for offshore work, product teams, support operations, and engineering handoffs.
Quick answers
What is the time difference between GMT and IST?
India Time is 4 hours 30 minutes ahead of GMT.
What happens to a 3:00 PM meeting in GMT?
It lands at 7:30 PM in IST.
Does daylight saving time matter for GMT to IST?
GMT and India Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.