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IRST/IRDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IRDT is not used on this date.

This converter uses IRST (UTC+3:30), as in Tehran.

ORAT
UTC+5
1h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:30 pm15:30 IRST (UTC+3:30), Oct 29, 2026 = 5:00 pm17:00 ORAT (UTC+5), Oct 29, 2026

IRST is 1 hour and 30 minutes behind ORAT.

IRDT and ORAT examples

These examples always use IRDT (UTC+4:30) and ORAT (UTC+5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

IRDT is 30 minutes behind ORAT.

How the time difference changes

IRST is 1 hour and 30 minutes behind ORAT year-round.

Working hours of 9:00 am to 6:00 pm in IRST correspond to 10:30 am to 7:30 pm in ORAT.Working hours of 09:00 to 18:00 in IRST correspond to 10:30 to 19:30 in ORAT.

Compare IRDT time with ORAT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Iran Standard Time is 1 hour and 30 minutes behind Oral Time.
3:30 pm15:30 in IRST is 5:00 pm17:00 in ORAT

IRST to ORAT call time
Best time for a conference call or a meeting is between 9am-4:30pm09:00-16:30 in IRST which corresponds to 10:30am-6pm10:30-18:00 in ORAT

3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
5:00 pm17:00 Oral Time (ORAT). Offset UTC +5:00 hours

3:30 pm15:30 IRST / 5:00 pm17:00 ORAT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
IRSTORAT
1:30am
2:30am
3:30am
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5:30am
6:30am
7:30am
8:30am
9:30am
10:30am
11:30am
12:30pm
1:30pm
2:30pm
3:30pm
4:30pm
5:30pm
6:30pm
7:30pm
8:30pm
9:30pm
10:30pm
11:30pm
12:30am next day
01:30
02:30
03:30
04:30
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08:30
09:30
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00:30 next day

Iran Daylight Time

Offset: IRDT is 4 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

IRDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0430 - basic
  • +04:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0430 - sign character (+) followed by a four digit time providing hours (04) and minutes (30) of the offset. Indicates an offset of four hours and thirty minutes to the east of the zero meridian.
Time zones with the GMT +4:30 offset:
  • AFT - Afghanistan Time
  • IRDT - Iran Daylight Time

Oral Time

Offset: ORAT is 5 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Kazakhstan

Principal Cities: The largest city in the ORAT time zone is Oral in Kazakhstan, with about 330,000 people. Other major cities in this time zone include Aqsay, Zhanibek, Tasqala, Zhumysker.

Daylight Saving: Clocks in Oral Time (ORAT) do not change for daylight saving time, so ORAT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

ORAT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +05 - basic short
  • +0500 - basic
  • +05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0500 - sign character (+) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Echo - Military abbreviation for ORAT
  • E - short form of 'Echo'
Time zones with the GMT +5 offset:
  • ALMT - Alma-Ata Time
  • AMST - Armenia Summer Time
  • AQTT - Aqtobe Time
  • AZST - Azerbaijan Summer Time
  • E - Echo Time Zone
  • MAWT - Mawson Time
  • MVT - Maldives Time
  • ORAT - Oral Time
  • PKT - Pakistan Standard Time
  • QYZT - Qyzylorda Time
  • TFT - French Southern and Antarctic Time
  • TJT - Tajikistan Time
  • TMT - Turkmenistan Time
  • UZT - Uzbekistan Time
  • YEKT - Yekaterinburg Time
  • HMT - Heard and McDonald Islands Time