Time zone converter
Convert a city's local date and time to up to seven other cities, including date changes and daylight-saving rules. Files and entered content are not sent to or stored on a server.
How to use
Convert a city's local date and time to up to seven other cities, including date changes and daylight-saving rules.
Please note
A nonexistent local time is rejected. When a time occurs twice, choose the first or second occurrence before converting.
Time zone converter User guide
Instructions
- Choose the source city and its local date and time.
- Add destination cities using English or Korean city and country names.
- Read each city's date, time and UTC offset. Copy the results if needed.
Example
Input / settings
Seoul · 2026-01-01 09:00
Result / checks
New York · 2025-12-31 19:00
Please note
- A nonexistent local time is rejected. When a time occurs twice, choose the first or second occurrence before converting.
- Supports dates from 1970–2100 using browser time-zone rules. Inputs stay in this browser; no file is generated.