The free access will start at 12 Noon (GMT) on Friday 22 January and expire at 11:59am (GMT) on Monday 25 January.
To access the records you'll need to be registered and signed in, so if you don't already have an account, you can set that up before the free weekend starts (it doesn't cost anything and you don't have to provide any financial details).
Existing 'local' subscribers ie those with an active Ireland, UK, USA/Canada or Australia/NZ subscription will find they have access to the entire world collection over the weekend.
Those researchers with an existing World subscription will find their sub extended by three days at no extra charge.
Please note that while nearly all World records are included in the free access, just a few collections are excluded due to licencing agreements. These excluded collections are the 1939 National Register, the UK Electoral Registers (2002-2013) and the UK Companies House Directors (2002-2013).
Choose the most appropriate 'territory' for your research, and enjoy the weekend!