Austin, TX to Ratnapura: time difference
Ratnapura is 10 h 30 min ahead of Austin, TX. Live clocks for both, the working hours they share, and how each one sits against your own time.
+10 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Austin, TX 07:18 7:18 AM Ratnapura 17:48 5:48 PM You –:–
07:18 7:18 AM
Central Daylight Time · UTC-5
☀️ 07:30 · 🌙 19:07
17:48 5:48 PM
India Standard Time · UTC+5:30
☀️ 05:56 · 🌙 17:56
·
+10 h 30 min
Ratnapura is 10 h 30 min ahead of Austin, TX.
When you, Austin, TX and Ratnapura are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Austin, TX
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
🇱🇰 Ratnapura
10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM 19:30 7:30 PM 20:30 8:30 PM 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM 2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Austin, TX | 🇱🇰 Ratnapura |
|---|---|---|
| Local time | 07:18 | 17:48 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Daylight Time | India Standard Time |
| UTC offset | UTC-5 | UTC+5:30 |
| Offset from Austin, TX | — | +10 h 30 min |
| IANA zone | America/Chicago | Asia/Colombo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:30 | 05:56 |
| Sunset | 19:07 | 17:56 |
| Daylight | 11 h 36 min | 12 h 1 min |
| People on this clock | 974,447 | 52,100 |
Compare Austin, TX with another city
More comparisons with Austin, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Austin, TX and Ratnapura: common questions
What is the time difference between Austin, TX, and Ratnapura?
Ratnapura is 10 hours and 30 minutes ahead: it uses UTC+5:30, while Austin is on UTC−5.
What time is it in Ratnapura at the start of the working day in Austin, TX?
The working day in Austin starts at 9:00 AM; in Ratnapura it is 7:30 PM at that moment.
What time is it in Ratnapura when it is 6:00 PM in Austin, TX?
When it is 6:00 PM in Austin, it is 4:30 AM (the next day) in Ratnapura.
When do working hours in Austin, TX, and in Ratnapura overlap?
They don't: there are no shared working hours. The start of the day in Austin (9:00 AM) is 7:30 PM in Ratnapura, and the start of the day in Ratnapura is 10:30 PM (the previous day) in Austin.
When is it already the next day in Ratnapura?
From 1:30 PM in Austin, TX, it is already the next day in Ratnapura. The other way round, until 10:30 AM in Ratnapura it is still the previous day in Austin.
Does the time gap between Austin, TX, and Ratnapura change during the year?
Yes – daylight saving time is used in Austin but not in Ratnapura. From November 1, 2026, Ratnapura will be 11 hours and 30 minutes ahead of Austin.
