# Diamond Bar 4th of July Blast: 2026 hours & dates

Diamond Bar 4th of July Blast: hours, dates and location, from official sources.

**Diamond Bar 4th of July Blast: 5:00 PM–9:00 PM, Friday, July 4 (not confirmed by the organiser).** _(as of 2026-10-18T23:27:20.885Z)_

- **Address:** Lorbeer Middle School, Diamond Bar, CA (not confirmed by the organiser)
- **Hours:** 5:00 PM–9:00 PM, Friday, July 4 (not confirmed by the organiser)
- **Notes:** Annual city fireworks/music celebration; free parking and admission. Originally at Sycamore Canyon Park, moved to Diamond Bar High School/Lorbeer Middle School as it grew. (not confirmed by the organiser)

## Common questions

### When is Diamond Bar 4th of July Blast open?

Diamond Bar 4th of July Blast is open 5:00 PM–9:00 PM, Friday, July 4 (not confirmed by the organiser).

_Data as of the dates shown · Sources: web research_

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