I used to use a Nearpow timer for irrigation but it was a PIA to program. I changed to this:
View attachment 5376144
Its a lot easier to program and to change programs if needed. You just put in the amount of time between events and the length of each event. For example: three hours for the first number and 45 seconds for the second number. It has a photocell that allows you to run irrigation only during lights on. Lots easier to program than the Nearpow that I used before.