# The generator says weekday 1-5 The sentence the generator writes for `0 9 * * 1-5` is "at minute 0, at hour 9, on weekday 1-5". On Vixie cron and cronie those numbers are Monday through Friday, at 09:00. Monday is 1. Friday is 5. Sunday is 0 and also 7. A scheduler that accepts only 0 for Sunday needs crontab(5) on that host before 7 is used. These are the four lines beside it in the guide. ```cron 0 * * * * # every hour, at minute 0 0 0 * * * # every day at 00:00 0 9 * * * # every day at 09:00 0 9 * * 1-5 # Monday through Friday at 09:00 ``` The hourly line starts 24 times. Midnight starts once. `0 9 * * *` still runs on Saturday and Sunday. `0 9 * * 1-5` stops after Friday. The hour belongs to the daemon's timezone. Vixie cron documents `CRON_TZ` for one crontab, and the host's own crontab(5) is where that setting is confirmed. A lone 5 is Friday. For `0 9 * * 5` the generator says "at minute 0, at hour 9, on Friday". The hyphen in `1-5` is what stretches the field from Monday through Friday. Both day fields have to be restricted before the either-day rule applies. `0 9 1 * 5` is that shape. A field that begins with `*`, and `*/2` is one of those, stays unrestricted, so `0 9 * * 1-5` remains a weekday line. The [cron expression generator](https://kepttools.com/cron-generator) shows the five fields on the page. Copy the line into the crontab on the machine that will run it. The either-day writeup is The field table is in the guide: