JST to LHST Time Converter
Use this JST to LHST time converter to compare Japan and Australia time instantly. LHST is 1 hour and 30 minutes ahead of JST, so 9:00 AM JST becomes 10:30 AM LHST and 5:00 PM JST becomes 6:30 PM LHST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
JST to LHST Quick Facts
Use this JST to LHST converter to compare Japan and Australia time, check the 1 hour and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM JST / 10:30 AM LHST.
How to Convert JST to LHST
Converting between Japan Standard Time and Lord Howe Standard Time means accounting for a 1 hours and 30 minutes 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 Lord Howe Standard Time (UTC +10:30) time appears immediately. Since LHST is 1 hours and 30 minutes ahead of JST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the LHST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our JST to LHST Converter
When someone in Japan suggests 9:00 AM JST, that's 10:30 AM LHST. 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 LHST because of the 1 hours and 30 minutes 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.
The half-hour offset between JST (UTC +9) and LHST (UTC +10:30) already makes mental math tricky — add Daylight Saving Time and the gap can shift further. This converter uses live UTC offsets, so you're always accurate.
Product launches, sports matches, and webinars are often announced in JST. Convert the event time to LHST so you know exactly when to tune in — with a 1 hours and 30 minutes difference, a morning event in Japan falls during work hours in Australia.
JST to LHST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Japan Standard Time to Lord Howe Standard Time full day schedule
| Japan Standard Time | Lord Howe Standard Time |
|---|---|
| 12:00 AM |
1:30 AM
|
| 1:00 AM |
2:30 AM
|
| 2:00 AM |
3:30 AM
|
| 3:00 AM |
4:30 AM
|
| 4:00 AM |
5:30 AM
|
| 5:00 AM |
6:30 AM
|
| 6:00 AM |
7:30 AM
|
| 7:00 AM |
8:30 AM
|
| 8:00 AM |
9:30 AM
|
| 9:00 AM |
10:30 AM
|
| 10:00 AM |
11:30 AM
|
| 11:00 AM |
12:30 PM
|
| 12:00 PM |
1:30 PM
|
| 1:00 PM |
2:30 PM
|
| 2:00 PM |
3:30 PM
|
| 3:00 PM |
4:30 PM
|
| 4:00 PM |
5:30 PM
|
| 5:00 PM |
6:30 PM
|
| 6:00 PM |
7:30 PM
|
| 7:00 PM |
8:30 PM
|
| 8:00 PM |
9:30 PM
|
| 9:00 PM |
10:30 PM
|
| 10:00 PM |
11:30 PM
|
| 11:00 PM |
12:30 AM
(next day)
|
Timezone offsets and DST rules verified against the IANA Time Zone Database. Conversion math and business-hour overlap windows double-checked against real-world scheduling scenarios.
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