PDT vs EDT — cities and working rhythm
US West Coast summer offset (mid-March to early November), UTC-7. During PDT, the 7-h gap with UTC / London simplifies daylight-hour overlap — 9 AM PT = 5 PM London (BST).
US East Coast summer offset (mid-March to early November), UTC-4. The narrower gap to Europe (only 4 h during northern-hemisphere summer) means early-morning EU meetings align with reasonable East Coast times.
Time gap: EDT is 3.0 hours ahead of PDT (standard-time offsets — daylight-saving flips shift this by an hour twice a year in most northern-hemisphere zones).