Timezone conversion
Chicago to JST Time — Convert Chicago to Japan Standard Time
JST is currently 14 hours ahead of Chicago. The gap shifts across the year: around January it is 15 hours ahead of Chicago, and around July it is 14 hours ahead of Chicago, because one or both zones observe daylight saving.
JST is currently 14 hours ahead of Chicago.
Chicago • CDT (UTC-5)
12:18 PM
Wednesday, Jul 8
JST • GMT+9 (UTC+9)
2:18 AM
Thursday, Jul 9
Interactive converter
12:00PM
12
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Full Chicago to JST conversion table
| Chicago | JST |
|---|---|
| 12:00 AM | 2:00 PM |
| 1:00 AM | 3:00 PM |
| 2:00 AM | 4:00 PM |
| 3:00 AM | 5:00 PM |
| 4:00 AM | 6:00 PM |
| 5:00 AM | 7:00 PM |
| 6:00 AM | 8:00 PM |
| 7:00 AM | 9:00 PM |
| 8:00 AM | 10:00 PM |
| 9:00 AM | 11:00 PM |
| 10:00 AM | 12:00 AM(next day) |
| 11:00 AM | 1:00 AM(next day) |
| 12:00 PM | 2:00 AM(next day) |
| 1:00 PM | 3:00 AM(next day) |
| 2:00 PM | 4:00 AM(next day) |
| 3:00 PM | 5:00 AM(next day) |
| 4:00 PM | 6:00 AM(next day) |
| 5:00 PM | 7:00 AM(next day) |
| 6:00 PM | 8:00 AM(next day) |
| 7:00 PM | 9:00 AM(next day) |
| 8:00 PM | 10:00 AM(next day) |
| 9:00 PM | 11:00 AM(next day) |
| 10:00 PM | 12:00 PM(next day) |
| 11:00 PM | 1:00 PM(next day) |
Daylight saving and how the gap changes
Around January the Chicago → JST offset is 15 hours ahead of Chicago. Around July it is 14 hours ahead of Chicago. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.
Frequently asked questions
- Is JST ahead of or behind Chicago right now?
- JST is currently 14 hours ahead of Chicago.
- What is the current Chicago to JST time difference?
- Right now the gap is 14 hours ahead — JST is 14 hours ahead of Chicago.
- Does the Chicago → JST offset change during the year?
- Yes. Around January the offset is 15 hours ahead of Chicago; around July it is 14 hours ahead of Chicago. The converter above always reflects the correct offset for the date you pick.
- Does Chicago observe daylight saving time?
- Yes — Chicago observes DST, so its UTC offset shifts by 1 hour(s) between winter and summer.
- Does JST observe daylight saving time?
- No — Japan Standard Time stays at a fixed UTC offset year-round.
- What time is 9 AM Chicago in JST?
- 9:00 AM Chicago is 11:00 PM JST.
- What time is 12 PM (noon) Chicago in JST?
- 12:00 PM Chicago is 2:00 AM (next day) JST.
- What time is 5 PM Chicago in JST?
- 5:00 PM Chicago is 7:00 AM (next day) JST.
- When is the best time to schedule a call between Chicago and JST?
- Chicago and JST have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.
- What time zone does Chicago refer to?
- Chicago uses the America/Chicago time zone.
- What time zone does JST refer to?
- JST refers to Japan Standard Time (IANA: Asia/Tokyo).