Time Difference Between San Juan and Moscow

The time difference between San Juan and Moscow is 7 hours. When it is 12:00 noon in San Juan, it is 19:00 in Moscow. San Juan uses the America/Puerto_Rico time zone (UTC-4), while Moscow uses Europe/Moscow (UTC+3).

Moscow is 7 hours ahead of San Juan — 7 hours
San Juan, Puerto Rico
19:51:13
Thursday, March 26, 2026
UTC-4 · AST
Moscow, Russia
02:51:13
Friday, March 27, 2026
UTC+3 · MSK

Time Zone Details: San Juan vs Moscow

Detail San Juan Moscow
Time Zone IDAmerica/Puerto_RicoEurope/Moscow
UTC OffsetUTC-4UTC+3
AbbreviationASTMSK
DST ActiveNoNo
CountryPuerto RicoRussia
RegionNorth AmericaEurope

Best Time to Schedule a Call

There are 1 overlapping business hours between San Juan and Moscow (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–10:00 in San Juan  =  16:00–17:00 in Moscow

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from San Juan time to Moscow time. Rows highlighted in green indicate overlapping business hours in both cities.

San Juan Moscow
00:00 07:00 Night
01:00 08:00 Night
02:00 09:00 Night
03:00 10:00 Night
04:00 11:00 Night
05:00 12:00 Night
06:00 13:00
07:00 14:00
08:00 15:00
09:00 16:00 Overlap
10:00 17:00
11:00 18:00
12:00 19:00
13:00 20:00
14:00 21:00
15:00 22:00
16:00 23:00
17:00 00:00 (+1 day)
18:00 01:00 (+1 day)
19:00 02:00 (+1 day)
20:00 03:00 (+1 day)
21:00 04:00 (+1 day)
22:00 05:00 (+1 day) Night
23:00 06:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Neither San Juan nor Moscow is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.

Practical Tips for San Juan–Moscow Scheduling

Compare San Juan and Moscow with Other Cities

From San Juan

From Moscow

Frequently Asked Questions

What is the time difference between San Juan and Moscow?

The time difference is 7 hours. Moscow is 7 hours ahead of San Juan.

Does the time difference change during the year?

It can. If either San Juan or Moscow observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).

When is the best time to call from San Juan to Moscow?

The best window is between 09:00 and 10:00 San Juan time, which corresponds to 16:00–17:00 in Moscow. Both sides fall within normal business hours.

How do I convert San Juan time to Moscow time?

Add 7 hours to San Juan time to get Moscow time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.