CST to JST converter: Central time to Japan time

In 2026 Tokyo is 15 hours ahead of Chicago until 8 March, 14 hours ahead from 8 March to 1 November and 15 hours ahead for the rest of the year, as only Chicago changes its clocks.

Chicago12:00 PMSunday 11 Oct · CDT

Tokyo2:00 AMMonday 12 Oct · JST

Tokyo is 14 h ahead Chicago today.

Chicago

01234567891011121314151617181920212223

Tokyo

14151617181920212223012345678910111213

9 to 6 working hoursboth at workNo overlap. Nearest: 7 PM in Chicago is 09:00 in Tokyo

Your result

Enter your values to see the result.

Daylight saving: local time and fixed CST and JST

The converter starts with Chicago to Tokyo, using local clock rules. For the standard-time offsets all year, use the fixed CST and JST button.

These examples use noon on the dates shown. A converted date can be the previous or following day.

Starting date and time	Using local city rules	Using fixed CST and JST
2026-01-15 12:00	2026-01-16 03:00 (UTC+09:00)	2026-01-16 03:00
2026-07-15 12:00	2026-07-16 02:00 (UTC+09:00)	2026-07-16 03:00

12:00 PM Wednesday 15 Jul in Chicago is 2:00 AM Thursday 16 Jul in Tokyo (JST, 14 h ahead).

Why daylight saving conversions need a date explains skipped and repeated clock readings. The rules here come from the browser’s time zone data and can lag a government change.