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09
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18
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AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Riyadh vs Kolkata

Riyadh keeps UTC+3 (UTC+3) and Kolkata keeps IST (UTC+5:30) today. Kolkata is 2½ hours ahead of Riyadh; the rows below read both clocks live.

The working day, side by side

Hours shaded in both rows are inside working hours in both cities: 12:00–18:00 in Kolkata (09:00–15:00 your time).

Riyadh and Kolkata hour by hour, with the working-hour overlap shaded
City00:00 in Riyadh01:00 in Riyadh02:00 in Riyadh03:00 in Riyadh04:00 in Riyadh05:00 in Riyadh06:00 in Riyadh07:00 in Riyadh08:00 in Riyadh09:00 in Riyadh10:00 in Riyadh11:00 in Riyadh12:00 in Riyadh13:00 in Riyadh14:00 in Riyadh15:00 in Riyadh16:00 in Riyadh17:00 in Riyadh18:00 in Riyadh19:00 in Riyadh20:00 in Riyadh21:00 in Riyadh22:00 in Riyadh23:00 in Riyadh
Riyadh——000102030405060708091011121314151617181920212223
Kolkata——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Riyadh and Kolkata

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep Riyadh, Kolkata and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in Riyadh
Inside working hours on both sides
12:00 in Kolkata
10:00 in Riyadh
Inside working hours on both sides
13:00 in Kolkata
11:00 in Riyadh
Inside working hours on both sides
14:00 in Kolkata
12:00 in Riyadh
Inside working hours on both sides
15:00 in Kolkata

Where daylight saving pulls them apart

Neither Riyadh nor Kolkata changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Kolkata of Riyadh?

Kolkata is 2½ hours ahead of Riyadh right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Riyadh and Kolkata?

Any hour in 09:00–15:00 Riyadh time is inside working hours in both cities.

Do Riyadh and Kolkata change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.