CronExpression

A cron expression of six fields, with the syntax of Spring's CronExpression, evaluated without a dependency: second minute hour day-of-month month day-of-week.

• Each field is * (or ?), a value, a range a-b, a step x/n (from x, a value, a range or *, every n), or a list of them separated by commas. Months may be named JAN–DEC, days of the week SUN–SAT, in any case; a day of the week is 0–7, both 0 and 7 Sunday.

• Day of month: L is the last day of the month, L-n the n-th day before it, LW its last weekday, nW the weekday nearest to day n within the month.

• Day of week: dL is the last day d of the month (5L, FRIL), d#n its n-th day d (MON#1).

• A day must match both day fields, as Spring reads them.

• The macros @yearly (@annually), @monthly, @weekly, @daily (@midnight) and @hourly.

next reads the fields as local times of a time zone: a local time that a daylight saving gap skips runs at the instant it would have been, later by the length of the gap (02:30 in a spring-forward gap runs at 03:30), unless an earlier time already ran at that instant; a local time that an overlap repeats runs once, at its earlier offset.