Most Plucky figs can contain a when modifier that causes the fig to only be effective during certain hours of the day or week. This can be used to good effect.

For example, to use a delay of 20 minutes during the day, but a delay of 4 hours after 5pm, and all day on Saturday:

pluck + delay 20m
pluck + when 16-24 delay 4h
pluck + when A0-24 delay 4h

The format of when rules is described in hrs3.