Within working hours
Europe/London
Friday, October 16, 2026 · 14:00–15:00 · UTC+01:00
America/New_York
Friday, October 16, 2026 · 09:00–10:00 · UTC-04:00
Europe/Paris
Friday, October 16, 2026 · 15:00–16:00 · UTC+02:00
Free time and date tool
Time Zone Converter
Choose a source and destination city or time zone. The same instant is displayed in both places.
✓ Your time and date calculations are not stored.
Your result will appear here.
Multi-time-zone meeting planner
Compare one source day across up to four IANA time zones. Every row is a real instant; the whole meeting must fit the same weekday working window at every location to qualify as a common slot.
This model uses Monday–Friday and one working-hour window for all participants. It does not check public holidays, leave, personal calendars, room availability, or travel. It is a single meeting, not a recurring schedule. Confirm consent with participants before sending the invitation.
Common working-hour slots: 3 · 2026-10-16 · 60 Minutes
Compare meeting times · 48
| Europe/London | America/New_York | Europe/Paris | Result |
|---|---|---|---|
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 1/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Within working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Within working hours | – UTC+02:00 Within working hours | 3/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Within working hours | – UTC+02:00 Within working hours | 3/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Within working hours | – UTC+02:00 Within working hours | 3/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 2/3 |
| – UTC+01:00 Within working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 2/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Within working hours | – UTC+02:00 Outside working hours | 1/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
| – UTC+01:00 Outside working hours | – UTC-04:00 Outside working hours | – UTC+02:00 Outside working hours | 0/3 |
Calculation basis: IANA rules installed on this server. Future civil-time decisions can change results; recheck before an important meeting. Repeated local times are distinguished by their UTC offset. Calendar exports use UTC instants. · tzdb 2026.3
Worked examples you can reproduce
These fixed inputs are calculated by the same engine as the tool above. Compare the result and the boundary rule, then load an example to change one variable. Business-day examples do not subtract holidays.
Example 1
A named zone may change its UTC offset by season. Keep the date with the time; do not replace the zone with one permanently fixed abbreviation.
Inputs
- Date
- 2026-01-15
- Time
- 09:00
- From city or time zone
- America/New_York
- To city or time zone
- Europe/London
Calculated result
- ISO 8601
- 2026-01-15T14:00:00+00:00
Example 2
New York and London do not switch their clocks on the same date. This March example differs from the January example even though both source clocks read 09:00.
Inputs
- Date
- 2026-03-10
- Time
- 09:00
- From city or time zone
- America/New_York
- To city or time zone
- Europe/London
Calculated result
- ISO 8601
- 2026-03-10T13:00:00+00:00
Example 3
Not every time-zone offset is a whole hour. Keep the minutes and the local calendar date when checking this result.
Inputs
- Date
- 2026-01-15
- Time
- 15:00
- From city or time zone
- UTC
- To city or time zone
- Asia/Kathmandu
Calculated result
- ISO 8601
- 2026-01-15T20:45:00+05:45
Detailed reading
Continue with the English editorial guides for worked reasoning, checklists, and source references.
Primary references
How it works
Convert a date and time between cities and IANA time zones with daylight-saving rules.
- Choose a source city or IANA time zone.
- Choose the destination city or IANA time zone.
- Set the local date and clock time, then calculate the matching instant.
Example
If a meeting starts at 9:00 AM in New York, select America/New_York and Europe/London to get the correct London time for that date.
How accuracy is handled
Named IANA zones are date-aware; fixed abbreviations such as EST or PST are not used as calculation rules.
Privacy: Inputs are validated and calculations use calendar-aware IANA time-zone rules.
Frequently asked questions
Can I search by city?
Yes. The searchable lists include every active city and time zone.
Are DST changes included?
Yes. The selected calendar date determines the applicable IANA rules.