Work in progressTimezonePair is still being built — expect rough edges & missing cities
TimezonePair
Home·Vientiane·Vientiane × Philadelphia
Prime meridian·:: UTC·

Vientiane×Philadelphia

Laos · LA
Vientiane
—:—
Asia/Vientiane·
No DST
United States · US
Philadelphia
—:—
America/New_York·
DST active

Vientiane is 11 hours behind Philadelphia. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
11h behind
Vientiane vs Philadelphia
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT+7 / GMT-4
Vientiane · EDT
04
Flight
16h 28m
13,570 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
Vientiane
—:—
0
3
6
9
12
15
18
21
Philadelphia
—:—
15
18
21
0
3
6
9
12
Scrub a meeting time14:00 Vientiane
Same moment in Philadelphia03:00 Philadelphia
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/vientiane/to/philadelphia?t=14&a=A&d=2026-04-27&dur=60
14:00 Vientiane03:00 Philadelphia
Full 24-hour reference
VientianePhiladelphia
00:00
13:00Philadelphia only
01:00
14:00Philadelphia only
02:00
15:00Philadelphia only
03:00
16:00Philadelphia only
04:00
17:00
05:00
18:00
06:00
19:00
07:00
20:00
08:00
21:00
09:00Vientiane only
22:00
10:00Vientiane only
23:00
11:00Vientiane only
00:00
12:00Vientiane only
01:00
13:00Vientiane only
02:00
14:00Vientiane only
03:00
15:00Vientiane only
04:00
16:00Vientiane only
05:00
17:00
06:00
18:00
07:00
19:00
08:00
20:00
09:00Philadelphia only
21:00
10:00Philadelphia only
22:00
11:00Philadelphia only
23:00
12:00Philadelphia only
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Vientiane and Philadelphia?

Vientiane is 11 hours behind Philadelphia. Vientiane runs on GMT+7 and Philadelphia on GMT-4. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

Standard 09:00–17:00 workdays don't intersect. Most teams compromise with one side meeting early (before 09:00) or late (after 17:00).

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Vientiane from Philadelphia?

About 13,570 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 16h 28m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

VIENTIANE · Asia/Vientiane
GMT+7 · 17.98°, 102.63°

PHILADELPHIA · America/New_York
GMT-4 · 39.95°, -75.17°

0h shared · 11h behind