LHST to JST Time Converter
Use this LHST to JST time converter to compare Australia and Japan time instantly. JST is 1 hour and 30 minutes behind LHST, so 9:00 AM LHST becomes 7:30 AM JST and 5:00 PM LHST becomes 3:30 PM JST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
LHST to JST Quick Facts
Use this LHST to JST converter to compare Australia and Japan time, check the 1 hour and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 11:00 AM LHST / 9:30 AM JST.
How to Convert LHST to JST
Converting between Lord Howe Standard Time and Japan 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 Lord Howe Standard Time (UTC +10:30) that you want to convert. Hit "Now" to load the current LHST time instantly, or use "+1h" to step forward and compare.
The equivalent Japan Standard Time (UTC +9) time appears immediately. Since JST is 1 hours and 30 minutes behind of LHST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the JST 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 LHST to JST Converter
When someone in Australia suggests 11:00 AM LHST, that's 9:30 AM JST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night LHST times can land on a different date in JST 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 LHST (UTC +10:30) and JST (UTC +9) 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 LHST. Convert the event time to JST so you know exactly when to tune in — with a 1 hours and 30 minutes difference, a morning event in Australia falls during work hours in Japan.
LHST to JST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Lord Howe Standard Time to Japan Standard Time full day schedule
| Lord Howe Standard Time | Japan Standard Time |
|---|---|
| 12:00 AM |
10:30 PM
(previous day)
|
| 1:00 AM |
11:30 PM
(previous day)
|
| 2:00 AM |
12:30 AM
|
| 3:00 AM |
1:30 AM
|
| 4:00 AM |
2:30 AM
|
| 5:00 AM |
3:30 AM
|
| 6:00 AM |
4:30 AM
|
| 7:00 AM |
5:30 AM
|
| 8:00 AM |
6:30 AM
|
| 9:00 AM |
7:30 AM
|
| 10:00 AM |
8:30 AM
|
| 11:00 AM |
9:30 AM
|
| 12:00 PM |
10:30 AM
|
| 1:00 PM |
11:30 AM
|
| 2:00 PM |
12:30 PM
|
| 3:00 PM |
1:30 PM
|
| 4:00 PM |
2:30 PM
|
| 5:00 PM |
3:30 PM
|
| 6:00 PM |
4:30 PM
|
| 7:00 PM |
5:30 PM
|
| 8:00 PM |
6:30 PM
|
| 9:00 PM |
7:30 PM
|
| 10:00 PM |
8:30 PM
|
| 11:00 PM |
9:30 PM
|
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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