Observatory log
Karachi and Kolkata, compared
- 01Difference now
Kolkata is 30 minutes ahead of Karachi.
Karachi: PKT (UTC+5) · Kolkata: IST (UTC+5:30)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027+30 min
Difference of Kolkata from Karachi. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Fri: 09:00–16:30 in Karachi = 09:30–17:00 in Kolkata · 7 h 30 min
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–16:30 in Karachi = 09:30–17:00 in Kolkata
Inside both working days (Mon–Fri).
- 05Weekend
Karachi: Saturday and Sunday
Kolkata: Saturday and Sunday
24 hours
A day in Karachi, in Kolkata
| Karachi | Kolkata | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 00:30 | |
| 01:00 | 01:30 | |
| 02:00 | 02:30 | |
| 03:00 | 03:30 | |
| 04:00 | 04:30 | |
| 05:00 | 05:30 | |
| 06:00 | 06:30 | |
| 07:00 | 07:30 | |
| 08:00 | 08:30 | |
| 09:00 | 09:30 | |
| 10:00 | 10:30 | |
| 11:00 | 11:30 | |
| 12:00 | 12:30 | |
| 13:00 | 13:30 | |
| 14:00 | 14:30 | |
| 15:00 | 15:30 | |
| 16:00 | 16:30 | |
| 17:00 | 17:30 | |
| 18:00 | 18:30 | |
| 19:00 | 19:30 | |
| 20:00 | 20:30 | |
| 21:00 | 21:30 | |
| 22:00 | 22:30 | |
| 23:00 | 23:30 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Karachi and Kolkata
More time differences with Karachi
Questions
Asked about Karachi and Kolkata
What is the time difference between Karachi and Kolkata?
Kolkata is 30 minutes ahead of Karachi. The difference stays the same all year.
What is the best time for a call between Karachi and Kolkata?
Inside both working days: Mon–Fri: 09:00–16:30 in Karachi = 09:30–17:00 in Kolkata · 7 h 30 min.
When does the time difference between Karachi and Kolkata change?
It does not change in the next 12 months: Karachi and Kolkata either keep the same time all year or change their clocks on the same dates.