Cron Expression: 0/1 0/30 0 ? * * * | @Scheduled(cron = "0 */30 * ? * *")
| Seconds | Minutes | Hours | Day Of Month | Month | Day Of Week | Year |
| 0/1 | 0/30 | 0 | ? | * | * | * |
Cron expression examples
| Expression | Meaning |
|---|---|
| * * * ? * * | Every second |
| 0 * * ? * * | Every minute |
| 0 */2 * ? * * | Every even minute |
| 0 1/2 * ? * * | Every uneven minute |
| 0 */2 * ? * * | Every 2 minutes |
| 0 */3 * ? * * | Every 3 minutes |
| 0 */4 * ? * * | Every 4 minutes |
| 0 */5 * ? * * | Every 5 minutes |
| 0 */10 * ? * * | Every 10 minutes |
| 0 */15 * ? * * | Every 15 minutes |
| 0 */30 * ? * * | Every 30 minutes |
| 0 15,30,45 * ? * * | Every hour at minutes 15, 30 and 45 |
| 0 0 * ? * * | Every hour |
| 0 0 */2 ? * * | Every hour |
| 0 0 0/2 ? * * | Every even hour |
| 0 0 1/2 ? * * | Every uneven hour |
| 0 0 */3 ? * * | Every three hours |
| 0 0 */4 ? * * | Every four hours |
| 0 0 */6 ? * * | Every six hours |
| 0 0 */8 ? * * | Every eight hours |
| 0 0 */12 ? * * | Every twelve hours |
| 0 0 0 * * ? | Every day at midnight - 12am |
| 0 0 1 * * ? | Every day at 1am |
| 0 0 6 * * ? | Every day at 6am |
| 0 0 12 * * ? | Every day at noon - 12pm |
| 0 0 12 * * ? | Every day at noon - 12pm |
| 0 0 12 ? * SUN | Every Sunday at noon |
| 0 0 12 ? * MON | Every Monday at noon |
| 0 0 12 ? * TUE | Every Tuesday at noon |
| 0 0 12 ? * WED | Every Wednesday at noon |
| 0 0 12 ? * THU | Every Thursday at noon |
| 0 0 12 ? * FRI | Every Friday at noon |
| 0 0 12 ? * SAT | Every Saturday at noon |
| 0 0 12 ? * MON-FRI | Every Weekday at noon |
| 0 0 12 ? * SUN,SAT | Every Saturday and Sunday at noon |
| 0 0 12 */7 * ? | Every 7 days at noon |
| 0 0 12 1 * ? | Every month on the 1st, at noon |
| 0 0 12 2 * ? | Every month on the 2nd, at noon |
| 0 0 12 15 * ? | Every month on the 15th, at noon |
| 0 0 12 1/2 * ? | Every 2 days starting on the 1st of the month, at noon |
| 0 0 12 1/4 * ? | Every 4 days staring on the 1st of the month, at noon |
| 0 0 12 L * ? | Every month on the last day of the month, at noon |
| 0 0 12 L-2 * ? | Every month on the second to last day of the month, at noon |
| 0 0 12 LW * ? | Every month on the last weekday, at noon |
| 0 0 12 1L * ? | Every month on the last Sunday, at noon |
| 0 0 12 2L * ? | Every month on the last Monday, at noon |
| 0 0 12 6L * ? | Every month on the last Friday, at noon |
| 0 0 12 1W * ? | Every month on the nearest Weekday to the 1st of the month, at noon |
| 0 0 12 15W * ? | Every month on the nearest Weekday to the 15th of the month, at noon |
| 0 0 12 ? * 2#1 | Every month on the first Monday of the Month, at noon |
| 0 0 12 ? * 6#1 | Every month on the first Friday of the Month, at noon |
| 0 0 12 ? * 2#2 | Every month on the second Monday of the Month, at noon |
| 0 0 12 ? * 5#3 | Every month on the third Thursday of the Month, at noon - 12pm |
| 0 0 12 ? JAN * | Every day at noon in January only |
| 0 0 12 ? JUN * | Every day at noon in June only |
| 0 0 12 ? JAN,JUN * | Every day at noon in January and June |
| 0 0 12 ? DEC * | Every day at noon in December only |
| 0 0 12 ? JAN,FEB,MAR,APR * | Every day at noon in January, February, March and April |
| 0 0 12 ? 9-12 * | Every day at noon between September and December |
