World Timezones

GMT to Perth Converter

Compare Perth to GMT instead
Greenwich Mean Time6:47 pmFri, Jun 5
Greenwich Mean TimeBST
Europe · UTC+1
6:47 pmFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
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5p
6p
7p
8p
9p
10p
11p
PerthAWST
Australia · UTC+8
1:47 amSat, Jun 6
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
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5a
6a

Offset

The time difference between Greenwich Mean Time and Perth is 7 hours.

7 hours

Greenwich Mean Time (BST) is behind Perth (AWST).

BST: UTC+1

AWST: UTC+8

Greenwich Mean Time is currently observing daylight saving time; Perth is not.

When to schedule

Business-hours overlap: 9 AM–10 AM in Greenwich Mean Time (4 PM–5 PM in Perth).

Both teams are in working hours during this window on weekdays.

Suggested time: 9:00 AM Greenwich Mean Time (4:00 PM Perth).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

United Kingdom

  • Good FridayFri, Apr 3
  • Early May Bank HolidayMon, May 4
  • Spring Bank HolidayMon, May 25
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

Greenwich Mean Time is also known as GMT, or BST. To call United Kingdom, dial +44.

Perth uses Australian Western Time (AWST). To call Australia, dial +61.

Perth is approximately 9,000 miles east of Greenwich Mean Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

GMTPerthDay
12:00 am7:00 amSame day
1:00 am8:00 amSame day
2:00 am9:00 amSame day
3:00 am10:00 amSame day
4:00 am11:00 amSame day
5:00 am12:00 pmSame day
6:00 am1:00 pmSame day
7:00 am2:00 pmSame day
8:00 am3:00 pmSame day
9:00 am4:00 pmSame day
10:00 am5:00 pmSame day
11:00 am6:00 pmSame day
12:00 pm7:00 pmSame day
1:00 pm8:00 pmSame day
2:00 pm9:00 pmSame day
3:00 pm10:00 pmSame day
4:00 pm11:00 pmSame day
5:00 pm12:00 am+1 day
6:00 pm1:00 am+1 day
7:00 pm2:00 am+1 day
8:00 pm3:00 am+1 day
9:00 pm4:00 am+1 day
10:00 pm5:00 am+1 day
11:00 pm6:00 am+1 day

Daylight saving time

Greenwich Mean Time observes daylight saving time; Perth does not. The offset between the two zones changes when Greenwich Mean Time transitions: on Sunday, October 25, 2026, clocks fall back from BST to GMT.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Greenwich Mean Time
Sunrise
4:47 AM
Sunset
9:13 PM
Day length
16h 25m
Perth
Sunrise
7:12 AM
Sunset
5:20 PM
Day length
10h 8m

Cities in these zones

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Greenwich Mean Time

  • LCY
  • LGW
  • LHR
  • LTN
  • STN
  • BHX
  • EMA
  • GLA
  • PIK
  • LBA

Airports in Australian Western Time

  • PER

Related conversions

Common conversions

What is 9:00 am GMT in Perth?
9:00 am GMT is 4:00 pm Perth.
What is 12:00 pm GMT in Perth?
12:00 pm GMT is 7:00 pm Perth.
What is 12:30 pm GMT in Perth?
12:30 pm GMT is 7:30 pm Perth.
What is 2:00 pm GMT in Perth?
2:00 pm GMT is 9:00 pm Perth.
What is 5:00 pm GMT in Perth?
5:00 pm GMT is 12:00 am Perth, the next day.
What is 11:30 pm GMT in Perth?
11:30 pm GMT is 6:30 am Perth, the next day.