CRN0

JST to HKT cron converter

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

UTC+9
UTC+8
0 8 * * *

At 08:00 every day in Hong Kong.

Show timeline and next runs
Tokyo
00061218
00061218
Hong Kong
Each amber mark is a run time. The top strip shows Tokyo local time and the bottom strip shows Hong Kong 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.

TokyoHong Kong

Examples

JSTHKT
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 HKT?

HKT 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 HKT.

What is the time difference between JST and HKT?

Japan Standard Time is UTC+9 and Hong Kong Time is UTC+8. Right now hKT is currently 1 hour behind JST.

Does daylight saving time affect JST to HKT cron conversion?

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

What is midnight JST in HKT cron?

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

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