Steam Winter Sale Start Date Leaked by PayPal

Just like with the Fall Sale dates, PayPal has given away Steam's secrets with the start date of the Winter Sale!

A redditor posted this to /r/Steam from an email to customers in Japan, they had the following:

This means that Europe and America will get to see what Steam has set for their Winter Sale on 17th December. This means it will start just after the GOG.com sale finishes and before the Humble Store sale ends.

Presumably it will follow the format of past Winter Sales and run until the start of January.