CRN0

KST to BRT cron converter

BRT is currently 12 hours behind KST. Convert BRT to KST

UTC+9
UTC-3
0 21 * * *

At 21:00 every day in São Paulo.

Show timeline and next runs
Seoul
00061218
00061218
São Paulo
Each amber mark is a run time. The top strip shows Seoul local time and the bottom strip shows São Paulo 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 Seoul.

SeoulSão Paulo

Examples

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

Questions

How do I convert a cron expression from KST to BRT?

BRT is currently 12 hours behind KST. Subtract 12 hours 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 KST) becomes 0 21 * * 0-4 in BRT.

What is the time difference between KST and BRT?

Korea Standard Time is UTC+9 and Brasília Time is UTC-3. Right now bRT is currently 12 hours behind KST.

Does daylight saving time affect KST to BRT cron conversion?

Neither KST nor BRT observes daylight saving time, so the 12 hours difference stays the same all year.

What is midnight KST in BRT cron?

Midnight in KST (0 0 * * *) is 0 12 * * * in BRT, on the previous day.

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