World Timezones

WAT to IRST Converter

Compare IRST to WAT instead
West Africa Time5:35 amFri, Jun 5
West Africa TimeWAT
Africa · UTC+1
5:35 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Iran Standard TimeIRST
Middle East · UTC+3:30
8:05 amFri, Jun 5
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a

Offset

The time difference between West Africa Time and Iran Standard Time is 2.5 hours.

2.5 hours

West Africa Time (WAT) is behind Iran Standard Time (IRST).

WAT: UTC+1

IRST: UTC+3:30

Neither West Africa Time nor Iran Standard Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–3 PM in West Africa Time (11 AM–5 PM in Iran Standard Time).

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

Suggested time: 12:00 PM West Africa Time (2:30 PM Iran Standard 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.

Nigeria

  • New Year's DayThu, Jan 1
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Workers' DayFri, May 1
  • Children's DayWed, May 27
  • Democracy DayFri, Jun 12
  • National DayThu, Oct 1
  • National Youth DaySun, Nov 1
  • Christmas DayFri, Dec 25
  • Boxing DayMon, Dec 28

About these zones

West Africa Time is also known as WAT. To call Nigeria, dial +234.

Iran Standard Time is also known as IRST. To call Iran, dial +98.

Iran Standard Time is approximately 3,650 miles northeast of West Africa Time.

Quick reference

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

WATIRSTDay
12:00 am2:30 amSame day
1:00 am3:30 amSame day
2:00 am4:30 amSame day
3:00 am5:30 amSame day
4:00 am6:30 amSame day
5:00 am7:30 amSame day
6:00 am8:30 amSame day
7:00 am9:30 amSame day
8:00 am10:30 amSame day
9:00 am11:30 amSame day
10:00 am12:30 pmSame day
11:00 am1:30 pmSame day
12:00 pm2:30 pmSame day
1:00 pm3:30 pmSame day
2:00 pm4:30 pmSame day
3:00 pm5:30 pmSame day
4:00 pm6:30 pmSame day
5:00 pm7:30 pmSame day
6:00 pm8:30 pmSame day
7:00 pm9:30 pmSame day
8:00 pm10:30 pmSame day
9:00 pm11:30 pmSame day
10:00 pm12:30 am+1 day
11:00 pm1:30 am+1 day

Daylight saving time

Neither West Africa Time nor Iran Standard Time observes daylight saving time. The offset between these zones remains constant year-round.

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

Daylight today

West Africa Time
Sunrise
6:31 AM
Sunset
7:00 PM
Day length
12h 29m
Iran Standard Time
Sunrise
4:50 AM
Sunset
7:18 PM
Day length
14h 28m

Daylight overlap: 10h 16m — 6:31 AM–4:48 PM in West Africa Time (9:01 AM–7:18 PM in Iran Standard Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Iran Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in West Africa Time

  • LOS
  • KAN
  • IBA
  • ABV
  • PHC
  • KAD
  • BNI
  • ABB

Airports in Iran Standard Time

  • IKA
  • THR
  • MHD
  • IFN
  • PYK
  • TBZ

Related conversions

Common conversions

What is 9:00 am WAT in IRST?
9:00 am WAT is 11:30 am IRST.
What is 12:00 pm WAT in IRST?
12:00 pm WAT is 2:30 pm IRST.
What is 12:30 pm WAT in IRST?
12:30 pm WAT is 3:00 pm IRST.
What is 2:00 pm WAT in IRST?
2:00 pm WAT is 4:30 pm IRST.
What is 5:00 pm WAT in IRST?
5:00 pm WAT is 7:30 pm IRST.
What is 11:30 pm WAT in IRST?
11:30 pm WAT is 2:00 am IRST, the next day.