Three numbers. The ones that decide the meeting.
When the world meets at work.
Read the day in both zones.
If it's this in Moscow, it's that in Irkutsk.
When it's 8:00 am in Moscow, it's 1:00 pm in Irkutsk — midday there, the same day.
When it's 10:00 am in Moscow, it's 3:00 pm in Irkutsk — afternoon there, the same day.
When it's 12:00 pm in Moscow, it's 5:00 pm in Irkutsk — afternoon there, the same day.
When it's 3:00 pm in Moscow, it's 8:00 pm in Irkutsk — evening there, the same day.
When it's 5:00 pm in Moscow, it's 10:00 pm in Irkutsk — night there, the same day.
When it's 9:00 pm in Moscow, it's 2:00 am in Irkutsk — late night there, the next day.
Quick answers. Before you book the call.
What's the time difference between Moscow and Irkutsk?
Moscow is 5 hours ahead of Irkutsk. Moscow runs on GMT+3 and Irkutsk on GMT+8. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.
When it's 10 am in Moscow, what time is it in Irkutsk?
10:00 am in Moscow is 3:00 pm in Irkutsk on the same day — afternoon there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When it's 3 pm in Moscow, what time is it in Irkutsk?
3:00 pm in Moscow is 8:00 pm in Irkutsk on the same day — evening there. The same shift applies to any hour; the quick-conversion cards and the 24-hour table above cover the full day.
When's the best time to schedule a meeting?
There are 3 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.
Does daylight saving time change the difference?
Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.
How far is Moscow from Irkutsk?
About 4,203 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 5h 27m, not counting airport time, winds, or routing around restricted airspace.
Can I send this meeting time as a calendar invite?
Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.