Rancho Cucamonga in numbers
- Coordinates
- 34.1064, -117.5930
- Population
- 175 236
- Region
- California
- Country
- United States, North America
- Capital
- Washington, D.C. — 3634 km away
What time is it in Rancho Cucamonga, California, United States
The clock above shows the current local time in Rancho Cucamonga, California, United States, which uses America/Los_Angeles (−8).
Rancho Cucamonga, United States
Sunday, 1 November 2026
UTC−8 · America/Los_Angeles
Local time in Rancho Cucamonga
UTC−8 · no daylight saving time
Rancho Cucamonga keeps America/Los_Angeles clock_time.
The sun today
Sunrise 6:11 AM Solar noon 11:35 AM Sunset 4:59 PM Daylight 10 h 48 min Night 13 h 12 min Civil twilight 5:45 AM – 5:25 PM
Weather in Rancho Cucamonga right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Rancho Cucamonga and its neighbours
Postal codes
- 91701
- 91729
- 91730
- 91737
- 91739
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in California
- Los Angeles 3 820 914
- San Diego 1 404 452
- San Jose 997 368
- San Francisco 827 526
- Fresno 542 107
- Sacramento 524 943
Same time zone — America/Los_Angeles
- Los Angeles United States
- San Diego United States
- San Jose United States
- San Francisco United States
- Seattle United States
- Portland United States
Nearby places
- North Cucamonga — 1.8 km
- Alta Loma — 1.8 km
- Las Uvas (historical) — 2.9 km
- Grapeland — 3.5 km
- Los Olivos — 4.4 km
- Rochester — 4.5 km
About the time in Rancho Cucamonga
Rancho Cucamonga takes in 5 postal codes.
Local timekeeping in Rancho Cucamonga uses America/Los_Angeles, equal to UTC−8. Summer clock change: No.
Rancho Cucamonga sees first light at 6:11 AM today and the sun sets at 4:59 PM. Daylight totals 10 h 48 min.
The same hours are kept in Rancho Cucamonga and in nearby Alta Loma and North Cucamonga.
Questions and answers
- Which time zone designation is used for Rancho Cucamonga?
- The designation used for Rancho Cucamonga is America/Los_Angeles, with an offset of −8.
- Do the clocks in Rancho Cucamonga go back at any point?
- No.
- What time does the sun set in Rancho Cucamonga?
- The sun sets in Rancho Cucamonga at 4:59 PM.