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What time does the Frosty Fest 2021 Rocket League Christmas Rocket League Items event start?
The Frosty Fest 2021 starting time will occur at 9am PST on sixteenth December for Rocket League fans in America.

Here in the UK, that suggests that Frosty Fest 2021 will start at 5pm GMT on sixteenth December from a British time district perspective. That is the place where the Christmas event in Rocket League will start this side of the pond.When does the Frosty Fest 2021 Rocket League Christmas event end?
It looks likely that the Frosty Fest 2021 Rocket League Christmas event will end on third January 2022.

That is the place where the event's second and last Limited Time Buy Rocket League Items Mode (LTM) will wrap up, so it's smart that the overall event would end around then too.