Irkutsk runs on UTC+8 every day of the year, with no daylight saving time.
Irkutsk and your time
Irkutsk at a glance
| Country | Russia |
|---|---|
| Region | Irkutsk Oblast |
| Time zone | Asia/Irkutsk |
| UTC offset now | UTC+8 |
| Daylight saving time | Not observed since 2010 |
| Coordinates | 52.30° N, 104.29° E |
Irkutsk time zone and clock changes
Local time in Irkutsk is UTC+8 year round, under the Asia/Irkutsk rules. Daylight saving time was used in the past, most recently in 2010, and no future change is scheduled.
Watch out when booking with the capital: Moscow is 5 hours behind Irkutsk, because Russia spans 11 offsets.
Clock changes in Irkutsk, 2026 and 2027
No clock changes are scheduled in Irkutsk for 2026 or 2027.
How far ahead or behind Irkutsk is
A 9:00 AM start in Irkutsk is 8:00 PM (previous day) in New York, 12:00 PM in Sydney and 5:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| Moscow | --:-- | 5 h behind | 5 h behind | 5 h behind | 3 h |
| New York (United States) | --:-- | 13 h behind | 13 h behind | 12 h behind | None |
| Los Angeles (United States) | --:-- | 16 h behind | 16 h behind | 15 h behind | None |
| London (United Kingdom) | --:-- | 8 h behind | 8 h behind | 7 h behind | None |
| Paris (France) | --:-- | 7 h behind | 7 h behind | 6 h behind | 1 h |
| Dubai (United Arab Emirates) | --:-- | 4 h behind | 4 h behind | 4 h behind | 4 h |
| Mumbai (India) | --:-- | 2 h 30 min behind | 2 h 30 min behind | 2 h 30 min behind | 5 h 30 min |
| Singapore | --:-- | Same time | Same time | Same time | 8 h |
| Tokyo (Japan) | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| Sydney (Australia) | --:-- | 3 h ahead | 3 h ahead | 2 h ahead | 5 h |
| UTC | --:-- | 8 h behind | 8 h behind | 8 h behind | None |
Because Irkutsk keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours is the part of a 9 AM to 5 PM local working day that both cities have in common. Weekends are not taken into account.
Daylight in Irkutsk
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Over the year, daylight in Irkutsk grows from 7 hours 41 minutes to 16 hours 48 minutes and back, a swing of 9 hours 7 minutes.
Daylight through the year in Irkutsk
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 7:06 AM | 7:15 PM | 12 h 9 min |
| June solstice | June 21 | 4:41 AM | 9:28 PM | 16 h 48 min |
| September equinox | September 23 | 6:50 AM | 7:00 PM | 12 h 10 min |
| December solstice | December 22 | 9:11 AM | 4:52 PM | 7 h 41 min |
Clock time and sun time in Irkutsk
Irkutsk sits well west of the centre of its time zone. On average the sun reaches its highest point at about 1:05 PM on standard time, not at 12:00. Mornings stay dark longer and evenings stay light later than the clock suggests.
Places close to Irkutsk
All the places listed below keep the same time as Irkutsk.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Angarsk | 39 km (24 mi) | --:-- | Same time |
| Ulan-Ude | 232 km (144 mi) | --:-- | Same time |
More cities in Russia
- Moscow
- St Petersburg
- Novosibirsk
- Yekaterinburg
- Nizhny Novgorod
- Kazan’
- Chelyabinsk
- Omsk
- Samara
- Rostov-on-Don
- Ufa
- Krasnoyarsk
All time zones and cities in Russia
Plan around the time in Irkutsk
- Convert a time to or from Irkutsk: pick a date and time and see it in every city on your list.
- Add Irkutsk to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Irkutsk and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Irkutsk in?
Irkutsk uses the Asia/Irkutsk time zone, which is UTC+8 all year.
Does Irkutsk use daylight saving time?
Not any more. Irkutsk last changed its clocks for daylight saving time in 2010 and now stays on UTC+8 all year.
What is the time difference between Irkutsk and New York?
Irkutsk is 13 hours ahead of New York in January and 12 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Irkutsk does not.
Is Irkutsk on the same time as Moscow?
No. Moscow is 5 hours behind Irkutsk, because Russia uses more than one offset.
How long is the longest day in Irkutsk?
About 16 hours 48 minutes, around the June solstice. The shortest day, around the December solstice, has about 7 hours 41 minutes of daylight.
Why is the sun not highest at noon in Irkutsk?
Clock time follows the time zone, not the sun. Irkutsk lies west of the line its offset is based on, so solar noon comes at about 1:05 PM on standard time.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.