Three numbers. The ones that decide the meeting.
When the world meets at work.
Read the day in both zones.
Crossing the border. Money, language, plugs.
Money changes hands at the border: Surabaya uses the IDR (Rp) and San Juan uses the USD ($). Language shifts too — Indonesian in Surabaya, English in San Juan. Be careful behind the wheel: Surabaya drives on the left, San Juan on the right.
- Country
- Indonesia
- Capital
- Jakarta
- Currency
- Indonesian rupiah (IDR · Rp)
- Language
- Indonesian
- Calling code
- +62
- Drives on
- Left
- Country
- Puerto Rico
- Capital
- San Juan
- Currency
- United States dollar (USD · $)
- Language
- English, Spanish
- Calling code
- +1
- Drives on
- Right
Quick answers. Before you book the call.
What's the time difference between Surabaya and San Juan?
Surabaya is 11 hours behind San Juan. Surabaya runs on GMT+7 and San Juan 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 Surabaya from San Juan?
About 18,763 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 22h 34m, 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.
What currency do Surabaya and San Juan use?
Surabaya uses the Indonesian rupiah (IDR, Rp); San Juan uses the United States dollar (USD, $). Check the live rate before transferring money or paying with a card abroad — most banks add a 1–3 % FX margin on top of the mid-market rate.
How do I call Surabaya from San Juan?
Dial the international prefix used by your carrier (often 011), then +62, then the local number — drop any leading zero of the city or mobile code. For free calls, WhatsApp, Signal, and FaceTime work over Wi-Fi regardless of country code.
What language is spoken in Surabaya and San Juan?
Surabaya primarily speaks Indonesian; San Juan speaks English, Spanish. English is widely used in business contexts in major cities of both, but written contracts may need translation.
Do Surabaya and San Juan drive on the same side of the road?
No. Indonesia drives on the left, Puerto Rico on the right. If you're renting, expect a learning curve on the first day — especially at roundabouts and when judging the centre of the lane.