CRN0

BRT to KST cron converter

KST is currently 12 hours ahead of BRT. Convert KST to BRT

UTC-3
UTC+9
0 21 * * *

At 21:00 every day in Seoul.

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

São PauloSeoul

Examples

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

Questions

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

KST is currently 12 hours ahead of BRT. Add 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 BRT) becomes 0 21 * * 1-5 in KST.

What is the time difference between BRT and KST?

Brasília Time is UTC-3 and Korea Standard Time is UTC+9. Right now kST is currently 12 hours ahead of BRT.

Does daylight saving time affect BRT to KST cron conversion?

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

What is midnight BRT in KST cron?

Midnight in BRT (0 0 * * *) is 0 12 * * * in KST.