Per Wikipedia's Tiangong space station viewed today:
- Days in orbit: 3 months, 15 days (13 August 2021)
- Days occupied: 1 month, 27 days (13 August 2021)
Currently it is just the single core module. There have been supply missions and there's currently a crew:
- Fully crewed: 3
- Currently aboard: 3
Question: Two months in a single space station module sounds challenging; how are astronauts aboard the Tiangong space station keeping busy?
For reference, this is from way back in June, shortly after arrival:
A day in the life of taikonauts at the CSS
The China space station is up and running with three astronauts, or taikonauts, living in it.
Life in the station has been improved much compared to previous Chinese crewed spacecrafts, with a larger living room and bedrooms, more advanced space suits and more.
The first few days in the space station were dedicated to the unpacking of supplies, especially those from the Tianzhou-2 supply ship. Though working more than eight hours a day, the three taikonauts can still enjoy naps during the noon break. There's also an automatic lighting system to keep a healthy inner clock.