Kolkata, India Kathmandu, Nepal

Kolkata is in the IST timezone (UTC+5:30) and Kathmandu is in the +0545 timezone (UTC+5:45). The time difference between them is 15 min.

Use the timeline above to find overlapping business hours between Kolkata and Kathmandu. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Neither Kolkata nor Kathmandu observes Daylight Saving Time, so the time difference remains constant throughout the year.

Click the pencil icon next to the Kolkata clock and type any time. The Kathmandu clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.