Clockjumper

Timezone conversion

JST to CDT Time — Convert Japan Standard Time to Central Daylight Time (US)

CDT is currently 14 hours behind JST. The gap shifts across the year: around January it is 15 hours behind JST, and around July it is 14 hours behind JST, because one or both zones observe daylight saving.

CDT is currently 14 hours behind JST.

JST • GMT+9 (UTC+9)
2:14 AM
Thursday, Jul 9
CDT • CDT (UTC-5)
12:14 PM
Wednesday, Jul 8

Interactive converter

12:00PM

12
:
00

Full JST to CDT conversion table

JSTCDT
12:00 AM10:00 AM(previous day)
1:00 AM11:00 AM(previous day)
2:00 AM12:00 PM(previous day)
3:00 AM1:00 PM(previous day)
4:00 AM2:00 PM(previous day)
5:00 AM3:00 PM(previous day)
6:00 AM4:00 PM(previous day)
7:00 AM5:00 PM(previous day)
8:00 AM6:00 PM(previous day)
9:00 AM7:00 PM(previous day)
10:00 AM8:00 PM(previous day)
11:00 AM9:00 PM(previous day)
12:00 PM10:00 PM(previous day)
1:00 PM11:00 PM(previous day)
2:00 PM12:00 AM
3:00 PM1:00 AM
4:00 PM2:00 AM
5:00 PM3:00 AM
6:00 PM4:00 AM
7:00 PM5:00 AM
8:00 PM6:00 AM
9:00 PM7:00 AM
10:00 PM8:00 AM
11:00 PM9:00 AM

Daylight saving and how the gap changes

Around January the JST → CDT offset is 15 hours behind JST. Around July it is 14 hours behind JST. 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 CDT ahead of or behind JST right now?
CDT is currently 14 hours behind JST.
What is the current JST to CDT time difference?
Right now the gap is 14 hours behind — CDT is 14 hours behind JST.
Does the JST → CDT offset change during the year?
Yes. Around January the offset is 15 hours behind JST; around July it is 14 hours behind JST. The converter above always reflects the correct offset for the date you pick.
Does JST observe daylight saving time?
No — Japan Standard Time stays at a fixed UTC offset year-round.
Does CDT observe daylight saving time?
Yes — Central Daylight Time (US) observes DST, so its UTC offset shifts by 1 hour(s) between winter and summer.
What time is 9 AM JST in CDT?
9:00 AM JST is 7:00 PM (previous day) CDT.
What time is 12 PM (noon) JST in CDT?
12:00 PM JST is 10:00 PM (previous day) CDT.
What time is 5 PM JST in CDT?
5:00 PM JST is 3:00 AM CDT.
When is the best time to schedule a call between JST and CDT?
JST and CDT 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 JST refer to?
JST refers to Japan Standard Time (IANA: Asia/Tokyo).
What time zone does CDT refer to?
CDT refers to Central Daylight Time (US) (IANA: America/Chicago).

Related