Equity wise, in my history, all equity actors can be called 30 minues before they have to go onstage. (If you have some wacky concept where the cast is on stage at house open, then you can call them 30 minutes before they have to go.) Fight call is 15 minutes before the half-hour, and only 15 minutes.
At my current theatre, artistic has made it very clear the stage is to be made available for phyiscla/vocal warm ups, so we make the stage open for 15 minutes prior fight call or, in the rare case I don't have fight call, half-hour.
You can make exceptions and call people earlier for speciality hair/wig/make-up calls, but you need to check your rule book, or more likely, with your business rep - as sometimes this additional time we eat up your weekly rehearsal time. (My current understanding is on LORT, these early calls come out of the 10 hours of rehearsal . . . so if I have to call an actor 30 minutes early make up and wig for 8 shows, that uses up 4 hours of rehearsal time for them.)
The rest of the calls are up to the SM - when to page half-hour, 15 minutes, 5 minutes and places - and should depend on the space. If it takes actors 5 minutes to get form the dressing room to places, then you need to adjust accordingly. I also do my calls relative to places (15 minutes to places called 18 minutes to show times, 5 minutes to places called 8 minutes to show time, places called 3 minutes to show time - but it takes my cast 3 minutes to get to the deck.)