Time difference between La Rioja and Denver

Denver is 3 hours behind La Rioja.

America/Argentina/La_Rioja America/Denver still the previous day

Local time in both cities

La Rioja · Argentina
02:49
Monday, 21 September 2026
America/Argentina/La_Rioja · UTC-03:00
Denver · United States
23:49
Sunday, 20 September 2026
America/Denver · UTC-06:00

Denver is 3 hours behind La Rioja.

still the previous day

Time zones

La RiojaAmerica/Argentina/La_Rioja · UTC-03:00
DenverAmerica/Denver · UTC-06:00

La Rioja does not observe daylight saving and stays on UTC-03:00 all year.

Denver is currently on daylight saving time (UTC-06:00). Next change: 2026-11-01 01:00.

Hour-by-hour conversion

Calculated for 2026-09-21 local time in La Rioja. The two places start and end daylight saving on different dates, so another day can give a different result.

La Rioja (source) Denver (target)
00:00 21:00 prev day
01:00 22:00 prev day
02:00 23:00 prev day
03:00 00:00
04:00 01:00
05:00 02:00
06:00 03:00
07:00 04:00
08:00 05:00
09:00 06:00
10:00 07:00
11:00 08:00
12:00 09:00
13:00 10:00
14:00 11:00
15:00 12:00
16:00 13:00
17:00 14:00
18:00 15:00
19:00 16:00
20:00 17:00
21:00 18:00
22:00 19:00
23:00 20:00

FAQ

How many hours apart are La Rioja and Denver right now?
The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
Is this difference the same all year?
Not necessarily. La Rioja uses America/Argentina/La_Rioja and Denver uses America/Denver; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
How do I read the conversion table?
The left column lists each whole hour in La Rioja; the right column is the local time in Denver at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.

Both cities