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

San José×Istanbul

Costa Rica · CR
San José
—:—
America/Costa_Rica·
No DST
Turkey · TR
Istanbul
—:—
Europe/Istanbul·
No DST

San José is 9 hours ahead of Istanbul. 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
9h ahead
San José vs Istanbul
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT-6 / GMT+3
Costa Rica · Istanbul
04
Flight
13h 37m
11,148 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
San José
—:—
0
3
6
9
12
15
18
21
Istanbul
—:—
9
12
15
18
21
0
3
6
Scrub a meeting time14:00 San José
Same moment in Istanbul23:00 Istanbul
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/san-josé/to/istanbul?t=14&a=A&d=2026-04-27&dur=60
14:00 San José23:00 Istanbul
Full 24-hour reference
San JoséIstanbul
00:00
09:00Istanbul only
01:00
10:00Istanbul only
02:00
11:00Istanbul only
03:00
12:00Istanbul only
04:00
13:00Istanbul only
05:00
14:00Istanbul only
06:00
15:00Istanbul only
07:00
16:00Istanbul only
08:00
17:00
09:00San José only
18:00
10:00San José only
19:00
11:00San José only
20:00
12:00San José only
21:00
13:00San José only
22:00
14:00San José only
23:00
15:00San José only
00:00
16:00San José only
01:00
17:00
02:00
18:00
03:00
19:00
04:00
20:00
05:00
21:00
06:00
22:00
07:00
23:00
08:00
◊ common questions

Quick answers. Before you book the call.

What's the time difference between San José and Istanbul?

San José is 9 hours ahead of Istanbul. San José runs on GMT-6 and Istanbul on GMT+3. 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 San José from Istanbul?

About 11,148 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 13h 37m, 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.

SAN JOSÉ · America/Costa_Rica
GMT-6 · 9.93°, -84.09°

ISTANBUL · Europe/Istanbul
GMT+3 · 41.01°, 28.98°

0h shared · 9h ahead