Buenos Aires to Riobamba: time difference

Riobamba is 2 h behind Buenos Aires. Live clocks for both, the working hours they share, and how each one sits against your own time.

🇪🇨 Riobamba, Ecuador

08

1:46 PM · Thursday, October 15, 2026

  • Ecuador Time
  • UTC-5
  • Daytime

☀️ 05:57 · 🌙 18:05 · 12 h 9 min

−2 h

One day, 2 clocks

Drag along the band to read any hour in every place at once.

Buenos Aires 15:46 3:46 PM Riobamba 13:46 1:46 PM
Buenos Aires 15:46 3:46 PM Riobamba 13:46 1:46 PM You –:–
🇦🇷 Buenos Aires

15:46 3:46 PM

Argentina Standard Time · UTC-3

☀️ 06:12 · 🌙 19:08

🇪🇨 Riobamba

13:46 1:46 PM

Ecuador Time · UTC-5

☀️ 05:57 · 🌙 18:05

⇄ Difference

−2 h

Riobamba is 2 h behind Buenos Aires.

When you, Buenos Aires and Riobamba are all at the desk

Pick the working hours below – the window every location shares appears once your time zone is known.

Working hours
🇦🇷 Buenos Aires
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
🇪🇨 Riobamba
22 10 PM 23 11 PM 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
  • Asleep
  • Early
  • Working hours
  • Evening
  • Both working
  • Right now

Time zones side by side

Detail 🇦🇷 Buenos Aires 🇪🇨 Riobamba
Local time 15:46 13:46
Local date Thursday, October 15, 2026 Thursday, October 15, 2026
Time zone Argentina Standard Time Ecuador Time
UTC offset UTC-3 UTC-5
Offset from Buenos Aires — −2 h
IANA zone America/Argentina/Buenos Aires America/Guayaquil
Daylight saving Not observed Not observed
Sunrise 06:12 05:57
Sunset 19:08 18:05
Daylight 12 h 56 min 12 h 9 min
People on this clock 2,891,082 170,000

Compare Buenos Aires with another city

More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.

Buenos Aires and Riobamba: common questions

How many hours behind Buenos Aires is Riobamba?
The clocks in Riobamba are 2 hours behind those in Buenos Aires (UTC−5 and UTC−3).
If it is 9:00 AM in Buenos Aires, what time is it in Riobamba?
At 9:00 AM in Buenos Aires, clocks in Riobamba show 7:00 AM.
What time is it in Riobamba at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Riobamba it is 4:00 PM at that moment.
Is there a time when both Buenos Aires and Riobamba are at work?
Yes: from 11:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 4:00 PM in Riobamba), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Riobamba?
Until 2:00 AM in Buenos Aires it is still the previous day in Riobamba. The other way round, from 10:00 PM in Riobamba it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Riobamba the same all year?
Yes. Neither Buenos Aires nor Riobamba switches to summer time, so the gap is always 2 hours.
Show times on the 12-hour clock, temperatures in °F and distances in miles?