The runt gem is a library for creating temporal expressions—expressions that describe date recurrence. For example, you can create a temporal expression that represents the first Monday of each month, or one that represents every 28th day; you could also, for instance, create a temporal expression that represents the first day of a particular accounting period—like a quarter year. You can use runt in a variety of ways; for example, you could use it if you had to run a special report every Monday, or you could run a backup script every other day.
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