Sofia to Kaluga: time difference
Kaluga is 1 h ahead of Sofia. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Sofia 00:21 12:21 AM Kaluga 01:21 1:21 AM You –:–
00:21 12:21 AM
Eastern European Standard Time · UTC+2
☀️ 07:06 · 🌙 17:16
01:21 1:21 AM
Moscow Standard Time · UTC+3
☀️ 07:47 · 🌙 16:52
·
+1 h
Kaluga is 1 h ahead of Sofia.
When you, Sofia and Kaluga are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇬 Sofia
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇷🇺 Kaluga
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇬 Sofia | 🇷🇺 Kaluga |
|---|---|---|
| Local time | 00:21 | 01:21 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Eastern European Standard Time | Moscow Standard Time |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Sofia | — | +1 h |
| IANA zone | Europe/Sofia | Europe/Moscow |
| Daylight saving | On standard time → UTC+3, Mar 28, 04:00 | Not observed |
| Sunrise | 07:06 | 07:47 |
| Sunset | 17:16 | 16:52 |
| Daylight | 10 h 10 min | 9 h 5 min |
| People on this clock | 1,286,383 | 331,842 |
Compare Sofia with another city
More comparisons with Sofia: the time zones next to it and the far side of the clock.
Big time differences
Sofia and Kaluga: common questions
How many hours ahead of Sofia is Kaluga?
The clocks in Kaluga are 1 hour ahead of those in Sofia (UTC+3 and UTC+2).
What time is it in Kaluga at the start of the working day in Sofia?
The working day in Sofia starts at 9:00 AM; in Kaluga it is 10:00 AM at that moment.
What time is it in Kaluga at the end of the working day in Sofia?
The working day in Sofia ends at 6:00 PM; in Kaluga it is 7:00 PM at that moment.
Is there a time when both Sofia and Kaluga are at work?
Yes: from 9:00 AM to 5:00 PM in Sofia (10:00 AM to 6:00 PM in Kaluga), the working days (9:00 AM–6:00 PM) overlap.
From what time in Sofia is it tomorrow in Kaluga?
Once it is 11:00 PM in Sofia, the date in Kaluga has already changed. Until 1:00 AM in Kaluga, it is still the previous day in Sofia.
Does the time difference between Sofia and Kaluga change?
Yes. The clocks change only in Sofia. From March 28, 2027, Kaluga and Sofia will have the same time.
