JST to EST converter
EST is 13 hours behind JST for most of the year. The gap is different for part of the year, because only one side changes its clocks: in 2026 that is 1 January to 7 March (14 hours) and 1 November to 31 December (14 hours). If you schedule something in that period, check the date.
JST to EST conversion table
Every hour of the day in JST and what it is in EST. The columns use a January date and a July date, so you can see how daylight saving changes the answer.
| Time in JST | EST in January JST to EST | EST in July JST to EDT |
|---|---|---|
| 12 AM | 10:00 AM previous day | 11:00 AM previous day |
| 1 AM | 11:00 AM previous day | 12:00 PM previous day |
| 2 AM | 12:00 PM previous day | 1:00 PM previous day |
| 3 AM | 1:00 PM previous day | 2:00 PM previous day |
| 4 AM | 2:00 PM previous day | 3:00 PM previous day |
| 5 AM | 3:00 PM previous day | 4:00 PM previous day |
| 6 AM | 4:00 PM previous day | 5:00 PM previous day |
| 7 AM | 5:00 PM previous day | 6:00 PM previous day |
| 8 AM | 6:00 PM previous day | 7:00 PM previous day |
| 9 AM | 7:00 PM previous day | 8:00 PM previous day |
| 10 AM | 8:00 PM previous day | 9:00 PM previous day |
| 11 AM | 9:00 PM previous day | 10:00 PM previous day |
| 12 PM | 10:00 PM previous day | 11:00 PM previous day |
| 1 PM | 11:00 PM previous day | 12:00 AM |
| 2 PM | 12:00 AM | 1:00 AM |
| 3 PM | 1:00 AM | 2:00 AM |
| 4 PM | 2:00 AM | 3:00 AM |
| 5 PM | 3:00 AM | 4:00 AM |
| 6 PM | 4:00 AM | 5:00 AM |
| 7 PM | 5:00 AM | 6:00 AM |
| 8 PM | 6:00 AM | 7:00 AM |
| 9 PM | 7:00 AM | 8:00 AM |
| 10 PM | 8:00 AM | 9:00 AM |
| 11 PM | 9:00 AM | 10:00 AM |
How to convert JST to EST
To convert JST to EST by hand, subtract 13 hours for most of the year, then fix the date if you cross midnight.
- 8 PM JST on 15 January is 6:00 AM EST.
- 8 PM JST on 15 July is 7:00 AM EDT.
- On the other side of the year, 8 PM JST on 2 February is 6:00 AM EST, because the gap is then 14 hours.
- 8 PM JST on 15 October is 7:00 AM EDT.
About the two time zones
Japan Standard Time (JST). Used in: Tokyo, Osaka, Kyoto, Sapporo. No daylight saving: the offset is the same all year.
Eastern Time (EST/EDT). Used in: New York, Toronto, Miami, Atlanta, Boston, Washington DC. Clocks go forward on the second Sunday in March and back on the first Sunday in November.
People write EST all year round, even in summer when the clocks actually say EDT. This tool treats EST, EDT and ET as the same thing: the current time in New York.
Skip the converter: let Herewise do it on every page
Herewise is a free Chrome extension. When a page says "8 PM EST", "75°F" or "$49", it adds a small label with the time, temperature or price in your own time zone, units and currency. Free, no account, nothing you read leaves your browser.
Questions
What is 8 PM JST in EST?
8 PM JST on 15 January is 6:00 AM EST. 8 PM JST on 15 July is 7:00 AM EDT. On the other side of the year, 8 PM JST on 2 February is 6:00 AM EST, because the gap is then 14 hours.
Is EST ahead of or behind JST?
EST is 13 hours behind JST for most of the year. The gap is different for part of the year, because only one side changes its clocks: in 2026 that is 1 January to 7 March (14 hours) and 1 November to 31 December (14 hours). If you schedule something in that period, check the date.
Does daylight saving change the difference between JST and EST?
Yes. Japan Standard Time: No daylight saving: the offset is the same all year. Eastern Time: Clocks go forward on the second Sunday in March and back on the first Sunday in November.
How can I see JST times in my own time zone automatically?
Install Herewise, a free Chrome extension. When a web page says a time like 8 PM JST, it adds a small label with that time in your own time zone, using the correct date for daylight saving.