You are correct, standard is usually a 5 day turn.(depending on management co.) Usually its as follows, depending on whats needed Carpet Replacement etc. The day of installs of things may very slightly.
Day 0 Move Out Date-Pictures taken, inspection and charges filled out
Day 1 for repairs/maintenance maybe 2 days depending on condition.
Day 2 for touch up paint (in house)--Full paint we vendor out.
Day 3 Resurfacing of tub, shower enclosure, kitchen (if needed) we also vendor this out
Day 4 Unit Clean
Day 5 Carpet Shampoo (Early Morning) - Final walk/ punch list if possible
Day 6-7 Complete punch list if needed - Move In
Please keep in mind we do not always resurface tubs, and kitchen counter as we have quartz in most, which will free up a day in the turn that you can utilize to add to maintenance and repairs depending on what is needed or to occupy unit faster.
We do not have maintenance on the weekend so if any of this falls with a weeknd then dates are adjusted to reflect that.
If you are the only one onsite and all of those units moved out at the same time. Make ready dates should have been scattered a couple days apart.
Depending on the condition of units and budget, as a manager, I would have had you do 2-3 in house and vendor the other ones out, or called in a temp. to help with grounds/works orders and lend you hand with turns when he finishes those items.
Depending on your property size, which sounds about 100 or less, I also stager my lease expirations at time of rental to try to prevent the possibility of to much turn over in 1 month.
Also, as a maintenance tech/supervisor, you should be aware of units on notice as soon as they go on notice, this way you can do pre-move out inspections prior to move out and determine which ones can be fast turns and which ones should be vendored out.
The schedule regarding make ready date should be determined or estimated at this time to put on the turn board,(I use an excel spreadsheet) this way this lets office staff know the date of availability and there is no confusion. This is to prevent them from scheduling a move in too early, you trying to get it done, with little opportunity for final walks and final punchlists.
Which may affect turn quality at move in, upset resident, possible rent credits, and may have you going back in after move in to rectify any issues they may or may not had.
Hope this helps! Good Luck