The short answer

12pm in Greenwich Mean Time is 4:30pm in India Standard Time.

Greenwich Mean Time is 4 hours 30 minutes behind India Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places.

Greenwich Mean Time
12pm
India Standard Time
4:30pm
Right now
7:29amBST · UTC+01:00 · Thu, Jun 11
11:59amIST · UTC+05:30 · Thu, Jun 11
Read across to convert
Greenwich Mean Time
BST · UTC+01:00
7:29am ☀
India Standard Time
IST · UTC+05:30
11:59am ☀
Pinned12pmGreenwich Mean Time=4:30pmIndia Standard Time
12amThu
4:30am
1am
5:30am
2am
6:30am
3am
7:30am
4am
8:30am
5am
9:30am
WORK
6am
10:30am
WORK
NOW
7am
11:30am
WORK
8am
12:30pm
WORK
9am
WORK
1:30pm
WORK
10am
WORK
2:30pm
WORK
11am
WORK
3:30pm
WORK
PINNED
12pm
WORK
4:30pm
WORK
1pm
WORK
5:30pm
2pm
WORK
6:30pm
3pm
WORK
7:30pm
4pm
WORK
8:30pm
5pm
9:30pm
6pm
10:30pm
7pm
11:30pm
8pm
12:30amFri ·+1d
9pm
1:30amFri ·+1d
10pm
2:30amFri ·+1d
11pm
3:30amFri ·+1d
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Greenwich Mean Time
9am–1pm
=
India Standard Time
1:30pm–5:30pm
Popular conversions

Quick reference.

9amGreenwich Mean Time=1:30pmIndia Standard Time
12pmGreenwich Mean Time=4:30pmIndia Standard Time
3pmGreenwich Mean Time=7:30pmIndia Standard Time
5pmGreenwich Mean Time=9:30pmIndia Standard Time
9pmGreenwich Mean Time=1:30amIndia Standard Time · next day
In context

What each side covers.

Greenwich Mean Time
BST · UTC+01:00
7:29am
Cities on this clock
India Standard Time
IST · UTC+05:30
11:59am
Cities on this clock
Did you mean…? “IST” is shared by several places. This page shows India Standard Time (India) — or switch to Israel Standard Time · Irish Standard Time.

Frequently asked

Quick answers about converting between Greenwich Mean Time and India Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Greenwich Mean Time and India Standard Time?
Greenwich Mean Time is 4 hours 30 minutes behind India Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 12pm in Greenwich Mean Time, what time is it in India Standard Time?
12pm in Greenwich Mean Time is 4:30pm in India Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Greenwich Mean Time and India Standard Time?
9am–1pm in Greenwich Mean Time lines up with 1:30pm–5:30pm in India Standard Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — BST and IST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.