Cronflake is a crate that provide utilities struct to work with cron experessioins
| Field | Required | Allowed values | Allowed special characters | Remarks |
|---|---|---|---|---|
| Minutes | Yes | 0–59 | * , - | |
| Hours | Yes | 0–23 | * , - | |
| Day of month | Yes | 1–31 | * , - ? L W | ? L W only in some implementations |
| Month | Yes | 1–12 or JAN–DEC | * , - | |
| Day of week | Yes | 0–6 or SUN–SAT | * , - ? L # | ? L # only in some implementations |