CST to JST Time Converter

CST refers to the America/Chicago timezone, currently --5 (GMT-5). JST refers to Asia/Tokyo, currently ++9 (GMT+9). Timezone abbreviation meanings and offsets are calculated live from the IANA tz database, so Daylight Saving Time is always applied correctly.

Representative cities: New York (United States) for CST and Tokyo (Japan) for JST.

Key Facts

• CST (America/Chicago): current live offset --5.
• JST (Asia/Tokyo): current live offset ++9.
• Time difference is computed from live IANA tzdb offsets and may shift by one hour during DST transitions.