Time difference between Kolkata and St. Louis

Compare the current local time in Kolkata and St. Louis, see when your working hours overlap, and convert any specific hour between the two timezones.

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šŸ‡®šŸ‡³ KolkataIST
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šŸ‡ŗšŸ‡ø St. LouisCST

How do I convert a specific time?

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šŸ‡®šŸ‡³ Kolkata šŸ‡ŗšŸ‡ø St. Louis

What's the working-hours overlap?

When Kolkata's 9:00–17:00 business hours overlap with St. Louis's.

Kolkata working hours St. Louis working hours Overlap (both working)
šŸ‡®šŸ‡³ Kolkata
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šŸ‡ŗšŸ‡ø St. Louis

How do you schedule across Kolkata and St. Louis?

Scheduling between Kolkata and St. Louis is hard. Their standard business hours do not overlap on the same day, with the smallest gap running 2 hours 30 minutes between Kolkata closing at 17:00 local and St. Louis opening at 09:00 local. Practical bridging slots: an early St. Louis start at 06:30 (catching Kolkata just at close, 17:00), or a late Kolkata call at 19:30 (catching St. Louis at opening, 09:00).

What's the quick reference?

Common hours in Kolkata mapped to St. Louis
šŸ‡®šŸ‡³ KolkatašŸ‡ŗšŸ‡ø St. LouisIn St. Louis it's…
06:00 — Early morning——
09:00 — Start of work——
12:00 — Lunchtime——
15:00 — Mid-afternoon——
17:00 — End of work——
20:00 — Evening——

What's the daylight saving status?

šŸ‡®šŸ‡³ Kolkata

Kolkata does not observe daylight saving time. The local offset is fixed year-round.

šŸ‡ŗšŸ‡ø St. Louis

Currently in CDT (daylight saving)
Clocks go back to CST on Sunday 1 November 2026