Can sitters set calendar availablity same as owners do with option to list 6am-11am, 11am-3pm, 3pm-10pm?

Owners who hire walkers can request a time range - 6am-11am 11am-3pm 3pm-10pm Is it possible for sitters to select the same thing on the calendar for availability? There are days of the week that I am available in the morning and/or afternoon,
I don't want to remove the whole day bc I have an obligation at some point in the day. If there isn't, is it possible to have the IT team create that? with m for morning, a for afternoon and e for evening?

What is a good solution?