At 09:00 on the first Monday of each month. Standard cron cannot say 'first Monday', so the line fires on days 1-7 and a guard lets only the Monday through.
0 9 1-7 * *
Open in Crontab Generator
Monthly team meetings, patch-day style maintenance and monthly reports that must land on a working day.
| Field | Value | Matches |
|---|---|---|
| Minute | 0 | 0 |
| Hour | 9 | 9 |
| Day of month | 1-7 | 1, 2, 3, 4, 5, 6, 7 |
| Month | * | every value |
| Day of week | * | every value |
Because cron cannot express this directly, the crontab line carries a guard that skips the unwanted days:
0 9 1-7 * * [ "$(date +\%u)" = "1" ] && /path/to/job
Computed when this page loaded (2026-11-11 02:24 UTC), assuming the scheduler runs in UTC. Only the days that pass the guard are listed.
| # | UTC | Your local time |
|---|---|---|
| 1 | Mon 2026-12-07 09:00 | |
| 2 | Mon 2027-01-04 09:00 | |
| 3 | Mon 2027-02-01 09:00 | |
| 4 | Mon 2027-03-01 09:00 | |
| 5 | Mon 2027-04-05 09:00 | |
| 6 | Mon 2027-05-03 09:00 | |
| 7 | Mon 2027-06-07 09:00 | |
| 8 | Mon 2027-07-05 09:00 | |
| 9 | Mon 2027-08-02 09:00 | |
| 10 | Mon 2027-09-06 09:00 |
Kubernetes uses the same five fields. Set spec.timeZone (stable since Kubernetes 1.27), otherwise the schedule follows the time zone of kube-controller-manager.
apiVersion: batch/v1
kind: CronJob
metadata:
name: first-monday-of-every-month
spec:
schedule: "0 9 1-7 * *"
timeZone: "Etc/UTC"
concurrencyPolicy: Forbid
startingDeadlineSeconds: 300
jobTemplate:
spec:
template:
spec:
restartPolicy: OnFailure
containers:
- name: job
image: debian:bookworm-slim
command: ["/bin/sh", "-c", "if [ \"$(date +%u)\" = \"1\" ]; then /app/run-job.sh; fi"]
Workflow schedules use five-field cron in UTC and run only from the default branch. Runs at minute 0 are the most likely to be delayed or dropped when GitHub is busy; an odd minute such as 7 or 23 starts more reliably.
on:
schedule:
- cron: '0 9 1-7 * *' # UTC
jobs:
run:
runs-on: ubuntu-latest
steps:
- name: Only continue on the intended day
id: gate
run: [ "$(date +%u)" = "1" ] && echo "go=1" >> "$GITHUB_OUTPUT" || true
- run: ./run-job.sh
if: steps.gate.outputs.go == '1'
The equivalent OnCalendar= value is Mon *-*-01..07 09:00:00.
Check it with systemd-analyze calendar 'Mon *-*-01..07 09:00:00', which prints the next elapse time. Persistent=true runs a missed job after downtime, which classic cron never does.
[Unit]
Description=First Monday of every month
[Timer]
OnCalendar=Mon *-*-01..07 09:00:00
Persistent=true
[Install]
WantedBy=timers.target
EventBridge rules take six fields (minute, hour, day-of-month, month, day-of-week, year) in UTC; EventBridge Scheduler can use a time zone. One of day-of-month and day-of-week must be ?, and day-of-week runs 1-7 from Sunday, so names are used here.
cron(0 9 ? * 2#1 *)
Quartz adds a leading seconds field and needs ? in either day field; days of the week are 1 (SUN) to 7 (SAT).
0 0 9 ? * 2#1
Spring's @Scheduled(cron = ...) also uses six fields, but numbers days of the week 0-7 with Sunday as 0 or 7, like Unix cron; the names shown above work in both.
0 0 1 1 *0 0 1 1,7 *0 0 1 */3 *0 0 31 * *0 0 28-31 * *0 0 15 * *