Time difference between Perth and Philadelphia
Compare the current local time in Perth and Philadelphia, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When Perth's 9:00–17:00 business hours overlap with Philadelphia's.
Perth working hours
Philadelphia working hours
Overlap (both working)
🇦🇺 Perth
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🇺🇸 Philadelphia
Scheduling across Perth and Philadelphia
Scheduling between Perth and Philadelphia is hard. Their standard business hours do not overlap on the same day, with the smallest gap running 4 hours between Philadelphia closing at 17:00 local and Perth opening at 09:00 local. Practical bridging slots: an early Perth start at 05:00 (catching Philadelphia just at close, 17:00), or a late Philadelphia call at 21:00 (catching Perth at opening, 09:00).
Quick reference
| 🇦🇺 Perth | 🇺🇸 Philadelphia | In Philadelphia it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇦🇺 Perth
Perth does not observe daylight saving time. The local offset is fixed year-round.
🇺🇸 Philadelphia
Currently in EDT (daylight saving)
Clocks go back to EST
on Sunday 1 November 2026