| Sunrise | Sunset | Daylight | |
|---|---|---|---|
| Today | 07:12 | 19:05 | 11h 53m |
| Tomorrow | 07:13 | 19:03 | 11h 50m |
| Change | +1m | −2m | −3m |
Positive change in sunset / daylight = days are getting longer. Negative change in sunrise = sun is rising earlier.
Today's light segments for Rosario. Amber = daylight, violet = twilight, dark = night.
Sunrise and sunset on the 1st of each month in Rosario.
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 05:58 | 20:15 | 14h 17m |
| February | 06:26 | 20:08 | 13h 42m |
| March | 06:51 | 19:41 | 12h 50m |
| April | 07:14 | 19:01 | 11h 47m |
| May | 07:36 | 18:25 | 10h 49m |
| June | 07:57 | 18:05 | 10h 08m |
| July | 08:07 | 18:07 | 10h 00m |
| August | 07:55 | 18:25 | 10h 30m |
| September | 07:23 | 18:45 | 11h 22m |
| October | 06:42 | 19:05 | 12h 23m |
| November | 06:05 | 19:29 | 13h 24m |
| December | 05:48 | 19:56 | 14h 08m |
Rosario is located at 32.95°S, 60.65°W. Its latitude determines how dramatically daylight hours change through the year.
The city uses the America/Argentina/Buenos_Aires timezone (GMT-3). It does not observe Daylight Saving Time, so solar times shift gradually through the year without abrupt clock changes.
Solar noon — the moment the sun reaches its highest point in the sky — occurs when the sun crosses the local meridian. In Rosario this falls around 13:01 in mid-summer and 12:52 in December, reflecting UTC offset and any DST adjustments.