Kolkata and Mumbai: Real-Time Clock
Kolkata leads by 0 hours
Kolkata ↔ Mumbai
8h of business hours overlap daily (09:00–17:00)· Showing afternoon hours (12:00–20:00)
Kolkata
Mumbai
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
Is Mumbai ahead of or behind Kolkata?
Kolkata and Mumbai are 0 hours apart. Kolkata (Asia/Kolkata) is behind Mumbai (Asia/Kolkata).
What hours do Kolkata and Mumbai share for work?
The 8 hours shared window (standard 9–5) gives room to schedule without anyone joining at odd hours. 09:00 Kolkata / 09:00 Mumbai is a solid anchor.
Will the offset change due to a DST transition anytime soon?
No DST changes are expected in the next 7 days for either Kolkata or Mumbai. The 0 hours difference is stable.
What is the Mumbai equivalent of 12:00 PM Kolkata time?
When it is 12:00 noon in Kolkata, it is 12:00 PM in Mumbai.
How does the Kolkata to Mumbai time converter work?
The live slider at the top converts any Kolkata time to Mumbai instantly. You can also type natural language like "9am" or "15:30".
Which UTC offsets do Kolkata and Mumbai follow?
Kolkata runs on Asia/Kolkata (IANA) and Mumbai on Asia/Kolkata (IANA) — a 0 hours gap between them.
Quick time conversions: Kolkata → Mumbai
Common reference points to help you plan across the time difference.
For every 3:00 PM in Kolkata, it's simultaneously 3:00 PM in Mumbai.
What time is 8:00 AM Kolkata in Mumbai?—8:00 AM
4:00 PMin Kolkata→4:00 PMin Mumbai
At 12:00 PM Kolkata time, you're looking at 12:00 PM in Mumbai.
11:00 AMin Kolkata→11:00 AMin Mumbai
Kolkata 10:00 AM — what's that in Mumbai?—10:00 AM