San Juan to Tokyo Time Converter
Tokyo is +13h ahead of San Juan
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FROM
San Juan
Puerto Rico
UTC-04:00
TO
Tokyo
Japan
UTC+09:00
Date-aware conversion
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Result
Thu, May 28, 2026 09:33
San Juan: Wednesday, May 27, 2026 8:33 PM AST to Tokyo: Thursday, May 28, 2026 9:33 AM GMT+9.
Tokyo is 13h ahead of San Juan on this date
24-Hour Comparison
Every hour in San Juan and the corresponding time in Tokyo. Green rows indicate business hours in Tokyo.
Time zones
San Juan uses America/Puerto_Rico (AST) and Tokyo uses Asia/Tokyo (GMT+9). Neither city observes daylight saving time in this dataset.
Best use
Use the green rows to spot normal working hours in Tokyo. For teams across more cities, open the meeting planner and compare up to five locations.
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Best time for San Juan and Tokyo
There is no full business-hour overlap in the 24-hour table, so use a custom time or rotate meeting times for fairness. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
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City context
About these cities
About San Juan
San Juan is located in Puerto Rico (North America). It uses the America/Puerto_Rico timezone with a standard offset of UTC-04:00. It does not observe Daylight Saving Time. See the full San Juan time page for live clock and planning details.
About Tokyo
Tokyo is located in Japan (Asia). It uses the Asia/Tokyo timezone with a standard offset of UTC+09:00. It does not observe Daylight Saving Time. See the full Tokyo time page for live clock and planning details.