CRN0

JST to SGT cron converter

SGT is currently 1 hour behind JST. Convert SGT to JST

UTC+9
UTC+8
0 8 * * *

At 08:00 every day in Singapore.

Show timeline and next runs
Tokyo
00061218
00061218
Singapore
Each amber mark is a run time. The top strip shows Tokyo local time and the bottom strip shows Singapore local time, lined up so the same moment sits on the same vertical line. Shaded areas are night hours.

Same moment as “at 09:00 every day” in Tokyo.

TokyoSingapore

Examples

JSTSGT
0 9 * * *
0 8 * * *
0 9 * * 1-5
0 8 * * 1-5
*/15 * * * *
*/15 * * * *
0 0 * * *
0 23 * * *
30 2 * * 0
30 1 * * 0
0 0 1 * *
0 23 31 * *
0 */6 * * *
0 5-23/6 * * *
0 17 * * 5
0 16 * * 5
Every hour of the day
0 0 * * *0 23 * * *day before
0 1 * * *0 0 * * *
0 2 * * *0 1 * * *
0 3 * * *0 2 * * *
0 4 * * *0 3 * * *
0 5 * * *0 4 * * *
0 6 * * *0 5 * * *
0 7 * * *0 6 * * *
0 8 * * *0 7 * * *
0 9 * * *0 8 * * *
0 10 * * *0 9 * * *
0 11 * * *0 10 * * *
0 12 * * *0 11 * * *
0 13 * * *0 12 * * *
0 14 * * *0 13 * * *
0 15 * * *0 14 * * *
0 16 * * *0 15 * * *
0 17 * * *0 16 * * *
0 18 * * *0 17 * * *
0 19 * * *0 18 * * *
0 20 * * *0 19 * * *
0 21 * * *0 20 * * *
0 22 * * *0 21 * * *
0 23 * * *0 22 * * *

Questions

How do I convert a cron expression from JST to SGT?

SGT is currently 1 hour behind JST. Subtract 1 hour to the hour field, and shift the day-of-week if the time crosses midnight. For example, 0 9 * * 1-5 (weekdays at 09:00 JST) becomes 0 8 * * 1-5 in SGT.

What is the time difference between JST and SGT?

Japan Standard Time is UTC+9 and Singapore Time is UTC+8. Right now sGT is currently 1 hour behind JST.

Does daylight saving time affect JST to SGT cron conversion?

Neither JST nor SGT observes daylight saving time, so the 1 hour difference stays the same all year.

What is midnight JST in SGT cron?

Midnight in JST (0 0 * * *) is 0 23 * * * in SGT, on the previous day.

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