Timezone Difference Calculator

Calculate the time difference between any two timezones. See current time in both zones and get meeting time suggestions for overlapping work hours.

0uses
0/10(0)

01:45:57 AM

Wed, Mar 25, 2026

UTC-04:00

05:45:57 AM

Wed, Mar 25, 2026

UTC+00:00

Time Difference

4 hours

London is ahead of New York by 4h

Best Meeting Times (overlapping work hours)

07:00New York
=
11:00London
Acceptable
08:00New York
=
12:00London
Acceptable
09:00New York
=
13:00London
Ideal
10:00New York
=
14:00London
Ideal
11:00New York
=
15:00London
Ideal
12:00New York
=
16:00London
Ideal
13:00New York
=
17:00London
Acceptable
14:00New York
=
18:00London
Acceptable

24-Hour Comparison

New YorkLondonWork Hours
00:0004:00
01:0005:00
02:0006:00
03:0007:00
04:0008:00
05:0009:00
06:0010:00
07:0011:00
08:0012:00
09:0013:00Both working
10:0014:00Both working
11:0015:00Both working
12:0016:00Both working
13:0017:00
14:0018:00
15:0019:00
16:0020:00
17:0021:00
18:0022:00
19:0023:00
20:0000:00
21:0001:00
22:0002:00
23:0003:00

How to Use the Timezone Difference Calculator

  1. Select your first timezone from the dropdown.
  2. Select the second timezone to compare.
  3. View the time difference, current times, and meeting time suggestions.
  4. Use the swap button to quickly switch the two timezones.

Features

  • 60+ major timezones worldwide
  • Live current time display in both zones
  • Automatic DST (Daylight Saving Time) handling
  • Meeting time overlap suggestions
  • Searchable timezone dropdowns
  • 100% client-side processing

Disclaimer:This tool is provided “as is” for informational and educational purposes only. Results may not be 100% accurate. ToolBird makes no warranties, express or implied, regarding the accuracy, reliability, or completeness of any output generated by this tool. This tool does not constitute professional, legal, financial, medical, or tax advice. Always consult a qualified professional for important decisions. By using this tool, you agree that ToolBird and its operators shall not be held liable for any damages, losses, or consequences arising from the use of this tool or reliance on its results. All processing occurs in your browser — we do not store, transmit, or access your data. Use at your own risk.