Convert time from JST to HKT. Enter any time to see the equivalent HKT time, compare current JST and HKT times side by side, and find overlapping business hours for calls and meetings.
Use this JST to HKT converter to compare Japan and Hong Kong time, check the 1 hour gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 10:00 AM JST / 9:00 AM HKT.
Converting between Japan Standard Time and Hong Kong Time means accounting for a 1 hour gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Japan Standard Time (UTC +9) that you want to convert. Hit "Now" to load the current jst time instantly, or use "+1h" to step forward and compare.
The equivalent Hong Kong Time (UTC +8) time appears immediately. Since hkt is 1 hour behind of jst, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the hkt result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
When someone in Japan suggests 10:00 AM jst, that's 9:00 AM hkt. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night jst times can land on a different date in hkt because of the 1 hour offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the jst–hkt gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in jst. Convert the event time to hkt so you know exactly when to tune in — with a 1 hour difference, a morning event in Japan falls during work hours in Hong Kong.
Quick-reference conversion table covering every hour of the day at a glance.
Japan Standard Time to Hong Kong Time full day schedule
| Japan Standard Time | Hong Kong Time |
|---|---|
| 12:00 AM |
11:00 PM
(previous day)
|
| 1:00 AM |
12:00 AM
|
| 2:00 AM |
1:00 AM
|
| 3:00 AM |
2:00 AM
|
| 4:00 AM |
3:00 AM
|
| 5:00 AM |
4:00 AM
|
| 6:00 AM |
5:00 AM
|
| 7:00 AM |
6:00 AM
|
| 8:00 AM |
7:00 AM
|
| 9:00 AM |
8:00 AM
|
| 10:00 AM |
9:00 AM
|
| 11:00 AM |
10:00 AM
|
| 12:00 PM |
11:00 AM
|
| 1:00 PM |
12:00 PM
|
| 2:00 PM |
1:00 PM
|
| 3:00 PM |
2:00 PM
|
| 4:00 PM |
3:00 PM
|
| 5:00 PM |
4:00 PM
|
| 6:00 PM |
5:00 PM
|
| 7:00 PM |
6:00 PM
|
| 8:00 PM |
7:00 PM
|
| 9:00 PM |
8:00 PM
|
| 10:00 PM |
9:00 PM
|
| 11:00 PM |
10:00 PM
|
Japan — one of the few large economies that has no DST, so JST is JST year-round (UTC+9). Business hours 9 AM – 6 PM JST with strong presence-based culture (staying past 7 PM is common). Same offset as Korean Standard Time (KST).
Explore more jst conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Hong Kong Time. Use these pages when scheduling with Hong Kong from a different region.
