Sixteen hours and fifteen minutes of non-stop live sport coverage starts at 05:15 GMT on Saturday on the BBC Sport website.
The day begins with the Winter Olympics, before Formula 1 testing, the Rugby League World Club Challenge, football and the Six Nations.
A range of live text commentaries, BBC Radio 5 live commentary and BBC television footage will be available online and through the Sport app.
The live coverage will end with England women's Six Nations tie against Ireland from 18:20 to 20:30.
Winter Olympics coverage starts with snowboarding at 05:15, with a range of other events across the day, including ice hockey, bobsleigh, speed skating and the men's slalom bringing an end to the games' alpine skiing programme.
In the afternoon, watch live Six Nations action as Italy take on Scotland, before England face off against Ireland in both the men's and women's series.
You can get all the latest football news and features on Football Focus (12:15), Final Score (16:00), Match of the Day (22:30) and the Football League Show (23:55).
Plus, follow all the Premier League action via our regular live text commentary which starts at 11:30 and runs throughout the day, and listen to live commentary of Chelsea v Everton (12:45) and Arsenal v Sunderland (from 15:10).
You can also keep up to date with Formula 1 testing in Bahrain (06:00) and the Rugby League World Club Challenge (08:30), courtesy of our comprehensive live text services, and BBC Radio 5 live sports extra commentary of the latter when Sydney Roosters take on Wigan.
For a comprehensive round up of TV and radio coverage, visit out Must-Not-Miss page.
You can read the latest news, listen to 5 live and watch the TV coverage via the BBC Sport app on your smartphone or tablet.