London to Simi Valley Time Difference

24-Hour Comparison

Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.

Best Time to Call

On a typical weekday (Monday–Friday).

London and Simi Valley have little to no overlap in typical business hours (9 AM–5 PM) — an early morning or evening call works best for one side.

Frequently Asked Questions

What is the time difference between London and Simi Valley?

Simi Valley is 8 hours behind London. London is currently UTC+1 and Simi Valley is UTC-7.

Is Simi Valley ahead of or behind London?

Simi Valley is behind London.

What is the best time to call Simi Valley from London?

London and Simi Valley have little to no overlap in typical business hours (9 AM–5 PM), even on a weekday — an early morning or evening call works best for one side.

What is the best time for a remote team standup between London and Simi Valley?

London and Simi Valley have little to no live overlap in typical business hours, so a synchronous standup rarely works for both sides. Instead, treat 05:00 PM in London (09:00 AM in Simi Valley) — the end of London's typical workday — as the async handoff point: write an end-of-day summary then, so the Simi Valley team has full context when their day starts.

Does the time difference between London and Simi Valley change during the year?

No. Neither city's daylight saving schedule changes the offset between them.