Smart hours to call Laos (+856)
Laos runs on ICT — seven hours ahead of GMT, sharing its time zone with Thailand and Cambodia. Knowing the best time to call Laos on +856 keeps you inside Vientiane office hours.
ICT, at a glance.
See the live gap between a global reference city and Laos's single ICT zone — no calculator needed.
Laos against the world's hubs.
Compare live Lao time against New York, London and Dubai so your call lands inside Vientiane office hours.
Understanding the time difference between the United States and Laos
Time zone differences across other major countries
Why timing matters for calls to Laos.
ICT aligns Laos with Bangkok and Ho Chi Minh City — a call timed for the Vientiane morning reaches three ASEAN capitals at once.
The best windows to reach Laos.
Four factors that decide when a Lao prospect picks up — anchored to the single ICT business day.
Laos runs at +07:00
The zone is Asia/Vientiane. Every window on this page is worked out from that offset rather than a rule of thumb, so the times shown are the ones that actually apply to Laos.
No daylight saving
Laos stays on +07:00 all year. The windows below only move when the caller's own country changes its clocks, not when Laos does.
Shared hours with 3 of 5 markets
Callers in London, Mumbai, Sydney share part of the working day with Laos. The table above gives the exact intersection for each.
Where the gap is too wide
There is no 9-to-5 overlap with New York, Los Angeles. Calling Laos from those cities means someone is working outside normal hours — worth saying so when you book the call.
How to call Laos using the +856 code.
Four simple steps for every call into Laos — including the two-digit area codes.
Number anatomy
Dial exit code
Press + on mobile or 00 from most landlines. This opens an international line.
Enter +856
Laos's international code. Every call to Laos must start with +856.
Area prefix
Add the local area or mobile network code — always drop any leading zero used for domestic calls.
Full number
Dial the remaining subscriber digits. Your number is now correctly formatted for international routing.
Best time to call — every country.
Jump to any country's best-time-to-call guide. Search by name, ISO or dial prefix.
Reach Lao customers in their window, on carrier-grade routes.
Free trial · No card required · Port numbers free · Month-to-month
When your working day overlaps Laos
Callers in London, Mumbai and Sydney share part of the working day with Laos. There is no shared working window with New York and Los Angeles.
| Calling from | Laos is | Call at (your time) | Which is (their time) |
|---|---|---|---|
| New York | 12h ahead | No shared working hours — you would need to call outside 9am-5pm | |
| Los Angeles | 15h ahead | No shared working hours — you would need to call outside 9am-5pm | |
| London | 7h ahead | 9:00 AM – 10:00 AM | 4:00 PM – 5:00 PM |
| Mumbai | 1h 30m ahead | 9:00 AM – 3:30 PM | 10:30 AM – 5:00 PM |
| Sydney | 4h behind | 1:00 PM – 5:00 PM | 9:00 AM – 1:00 PM |
Windows are the intersection of a 9am-5pm working day in each place, using Laos'standard-time offset of +07:00. Laos does not observe daylight saving, so these windows hold all year — though they shift when the caller's own country changes its clocks.
FAQ
Calling Laos, answered.
Time zone, daylight saving and dialling questions for Laos (+856).