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IRST to GST Time Converter

Convert time from IRST to GST. Enter any time to see the equivalent GST time, compare current IRST and GST times side by side, and find overlapping business hours for calls and meetings.

irst Iran Standard Time
...
gst Gulf Standard Time
...
Select a time to convert

irst to gst Quick Facts

Use this IRST to GST converter to compare Iran and UAE and Gulf time, check the 0 hours and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM IRST / 9:30 AM GST.

Time Difference
Gulf Standard Time is 0 hours and 30 minutes ahead of Iran Standard Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 9:00 AM irst and 9:30 AM gst.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert irst to gst

Converting between Iran Standard Time and Gulf Standard Time means accounting for a 0 hours and 30 minutes gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your irst Time

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.

Read the gst Result

The equivalent Gulf Standard Time (UTC +4) time appears immediately. Since gst is 0 hours and 30 minutes ahead of irst, most daytime conversions stay on the same calendar day.

Copy or Fine-Tune

Click "Copy Time" to grab the gst 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 irst to gst Converter

Align irst–gst Meetings Instantly

When someone in Iran suggests 9:00 AM irst, that's 9:30 AM gst. This converter shows the overlap so both sides agree on one slot — no back-and-forth.

Spot Date-Line Shifts at a Glance

Late-night irst times can land on a different date in gst because of the 0 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.

Handles DST Transitions Automatically

The half-hour offset between irst (UTC +3:30) and gst (UTC +4) 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.

Never Miss a irst-Timed Event

Product launches, sports matches, and webinars are often announced in irst. Convert the event time to gst so you know exactly when to tune in — with a 0 hours and 30 minutes difference, a morning event in Iran falls during work hours in United Arab Emirates.

irst to gst Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Iran Standard Time to Gulf Standard Time full day schedule

12:00 AM
irst
12:30 AM
gst
1:00 AM
irst
1:30 AM
gst
2:00 AM
irst
2:30 AM
gst
3:00 AM
irst
3:30 AM
gst
4:00 AM
irst
4:30 AM
gst
5:00 AM
irst
5:30 AM
gst
6:00 AM
irst
6:30 AM
gst
7:00 AM
irst
7:30 AM
gst
8:00 AM
irst
8:30 AM
gst
9:00 AM
irst
9:30 AM
gst
10:00 AM
irst
10:30 AM
gst
11:00 AM
irst
11:30 AM
gst
12:00 PM
irst
12:30 PM
gst
1:00 PM
irst
1:30 PM
gst
2:00 PM
irst
2:30 PM
gst
3:00 PM
irst
3:30 PM
gst
4:00 PM
irst
4:30 PM
gst
5:00 PM
irst
5:30 PM
gst
6:00 PM
irst
6:30 PM
gst
7:00 PM
irst
7:30 PM
gst
8:00 PM
irst
8:30 PM
gst
9:00 PM
irst
9:30 PM
gst
10:00 PM
irst
10:30 PM
gst
11:00 PM
irst
11:30 PM
gst
Reviewed by Editorial team Updated