IRST to LHST Time Converter
Use this IRST to LHST time converter to compare Iran and Australia time instantly. LHST is 7 hours ahead of IRST, so 9:00 AM IRST becomes 4:00 PM LHST and 5:00 PM IRST becomes 12:00 AM (next day) LHST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
IRST to LHST Quick Facts
Use this IRST to LHST converter to compare Iran and Australia time, check the 7 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM IRST / 4:00 PM LHST.
How to Convert IRST to LHST
Converting between Iran Standard Time and Lord Howe Standard Time means accounting for a 7 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Iran Standard Time (UTC +3:30) that you want to convert. Hit "Now" to load the current IRST 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 7 hours ahead of IRST, 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 — helpful for scheduling recurring Iran–Australia calls.
Why Choose Our IRST to LHST Converter
When someone in Iran suggests 9:00 AM IRST, that's 4:00 PM LHST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night IRST times can land on a different date in LHST because of the 7 hours 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 IRST–LHST 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 IRST. Convert the event time to LHST so you know exactly when to tune in — with a 7 hours difference, a morning event in Iran falls during work hours in Australia.
IRST to LHST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Iran Standard Time to Lord Howe Standard Time full day schedule
| Iran Standard Time | Lord Howe Standard Time |
|---|---|
| 12:00 AM |
7:00 AM
|
| 1:00 AM |
8:00 AM
|
| 2:00 AM |
9:00 AM
|
| 3:00 AM |
10:00 AM
|
| 4:00 AM |
11:00 AM
|
| 5:00 AM |
12:00 PM
|
| 6:00 AM |
1:00 PM
|
| 7:00 AM |
2:00 PM
|
| 8:00 AM |
3:00 PM
|
| 9:00 AM |
4:00 PM
|
| 10:00 AM |
5:00 PM
|
| 11:00 AM |
6:00 PM
|
| 12:00 PM |
7:00 PM
|
| 1:00 PM |
8:00 PM
|
| 2:00 PM |
9:00 PM
|
| 3:00 PM |
10:00 PM
|
| 4:00 PM |
11:00 PM
|
| 5:00 PM |
12:00 AM
(next day)
|
| 6:00 PM |
1:00 AM
(next day)
|
| 7:00 PM |
2:00 AM
(next day)
|
| 8:00 PM |
3:00 AM
(next day)
|
| 9:00 PM |
4:00 AM
(next day)
|
| 10:00 PM |
5:00 AM
(next day)
|
| 11:00 PM |
6:00 AM
(next day)
|
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