Time tools
World timezones
Compare two cities side by side and scan a 24-hour timeline to find meeting times that work for everyone.
Calcutta UTC ±00:00
Now: 5:36 PM
UTC ±00:00
Kolkata UTC +05:30
Now: 5:36 PM
UTC +05:30
Local period
UTC
Calcutta
Kolkata
Night +0h
12:00 AM
5:30 AM
5:30 AM
Morning +1h
1:00 AM
6:30 AM
6:30 AM
Morning +2h
2:00 AM
7:30 AM
7:30 AM
Morning +3h
3:00 AM
8:30 AM
8:30 AM
Morning +4h
4:00 AM
9:30 AM
9:30 AM
Morning +5h
5:00 AM
10:30 AM
10:30 AM
Morning +6h
6:00 AM
11:30 AM
11:30 AM
Afternoon +7h
7:00 AM
12:30 PM
12:30 PM
Afternoon +8h
8:00 AM
1:30 PM
1:30 PM
Afternoon +9h
9:00 AM
2:30 PM
2:30 PM
Afternoon +10h
10:00 AM
3:30 PM
3:30 PM
Afternoon +11h
11:00 AM
4:30 PM
4:30 PM
Afternoon +12h
12:00 PM
5:30 PM
5:30 PM
Evening +13h
1:00 PM
6:30 PM
6:30 PM
Evening +14h
2:00 PM
7:30 PM
7:30 PM
Evening +15h
3:00 PM
8:30 PM
8:30 PM
Evening +16h
4:00 PM
9:30 PM
9:30 PM
Evening +17h
5:00 PM
10:30 PM
10:30 PM
Evening +18h
6:00 PM
11:30 PM
11:30 PM
Night +19h
7:00 PM
12:30 AM
12:30 AM
Night +20h
8:00 PM
1:30 AM
1:30 AM
Night +21h
9:00 PM
2:30 AM
2:30 AM
Night +22h
10:00 PM
3:30 AM
3:30 AM
Night +23h
11:00 PM
4:30 AM
4:30 AM
Each row shows the same instant in time across all three zones, stepping forward hour by hour from right now. Darker bands represent nighttime where you chose “Time zone A”.