Toronto zone
EDT (GMT-4)
Kolkata zone
GMT+5:30 (GMT+5:30)
Difference
9h 30m ahead of Toronto
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Toronto. Filled cells mark when 9 AM – 5 PM in Toronto and Kolkata both apply.
0 hours per day
- Toronto
- GMT-4
- Kolkata
- GMT+5:30
- Difference
- +9h 30m
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Kolkata for an hour in Toronto.
| Toronto | Kolkata | Day | Window |
|---|---|---|---|
| 12:00 AM | 9:30 AM | same day | — |
| 1:00 AM | 10:30 AM | same day | — |
| 2:00 AM | 11:30 AM | same day | — |
| 3:00 AM | 12:30 PM | same day | — |
| 4:00 AM | 1:30 PM | same day | — |
| 5:00 AM | 2:30 PM | same day | — |
| 6:00 AM | 3:30 PM | same day | — |
| 7:00 AM | 4:30 PM | same day | — |
| 8:00 AM | 5:30 PM | same day | — |
| 9:00 AM | 6:30 PM | same day | — |
| 10:00 AM | 7:30 PM | same day | — |
| 11:00 AM | 8:30 PM | same day | — |
| 12:00 PM | 9:30 PM | same day | — |
| 1:00 PM | 10:30 PM | same day | — |
| 2:00 PM | 11:30 PM | same day | — |
| 3:00 PM | 12:30 AM | next day | — |
| 4:00 PM | 1:30 AM | next day | — |
| 5:00 PM | 2:30 AM | next day | — |
| 6:00 PM | 3:30 AM | next day | — |
| 7:00 PM | 4:30 AM | next day | — |
| 8:00 PM | 5:30 AM | next day | — |
| 9:00 PM | 6:30 AM | next day | — |
| 10:00 PM | 7:30 AM | next day | — |
| 11:00 PM | 8:30 AM | next day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Toronto and Kolkata do not overlap. Plan calls for early Toronto morning or late Toronto evening, and rotate the burden between sides.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Toronto time to Kolkata time
Toronto follows the America/Toronto time zone (currently EDT, GMT-4), while Kolkata follows Asia/Kolkata (currently GMT+5:30, GMT+5:30). Kolkata is 9h 30m ahead of Toronto right now.
Toronto observes daylight saving time, while Kolkata does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Toronto
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Kolkata
Does not observe daylight saving time.
Reverse this conversion
Kolkata to Toronto
Open the converter
Plan a meeting between Toronto and Kolkata
More conversions from Toronto
Frequently asked questions
- How many hours is Toronto from Kolkata?
- Kolkata is 9h 30m ahead of Toronto right now.
- What time is 9:00 AM Toronto in Kolkata?
- 9:00 AM in Toronto is 6:30 PM in Kolkata.
- What time is 5:00 PM Toronto in Kolkata?
- 5:00 PM in Toronto is 2:30 AM (next day) in Kolkata.
- When do Toronto and Kolkata business hours overlap?
- Standard 9 AM - 5 PM working hours in Toronto and Kolkata do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Toronto and Kolkata?
- Toronto observes daylight saving time while Kolkata does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Toronto
Local time page
Time in Kolkata