@RiaanEngelbrecht I’m glad you didn’t say category 0, which I almost overlooked 
The way forward for you is to search this site for “irrigation” and sort by most recent thread.
Study the similar projects created by other Blynker and decide which one is the best fit for you.
Come back to us or the code author if there are parts of their sketch that you don’t understand or you have a specific requirement to do something a little differently.
If you specifically want to learn about the Time Input widget, which would be beneficial for your specific project, take a look at the general concepts in this fairly recent thread Automatic scheduler. ESP-01 with 4 Time Input Widgets
Also search this site for Time Input but beware the RTC widget that is normally used alongside Time Input was changed a few months ago. Ensure you use the syntax as provided in Sketch Builder and not that of sketches written many months ago.
One further tip, do a bit at a time, test it, move on to the next bit.