>>58767322Ideal time is just before starting sleep tracking on Sunday, it lets you get 8 sleeps worth of bonuses as long as your final sleep session starts just before the GCT expires.
This is a good week to use a GCT thanks to the double dream shard bonus, you should even consider using a legendary incense plus a luck incense together for a huge payout.
There's also the two week long New Year's event that starts next week.
Week one has 1.5x candy rewards from your first sleep session.
Week two has 1.5x dream shard rewards from all sleep sessions.
Both weeks feature boosted spawns for Pokémon introduced in 2025, with Trapinch, Bagon, and Dwebble also being temporarily available at Greengrass again.
Across the three weeks, this might be the best week to use a GCT if you just want dream shards, but next week may be best if you want more chances at new Pokémon. The available Pokémon each week differ though, so check the news to see which week is most interesting to you.
https://www.pokemonsleep.net/en/news/333435333139353737393034373432343033/ 