- Mariusz Majewski, Julian O'Shea
- 49 hour(s)
- Samoa (Various)
The longest day is 49 hours and was achieved by Mariusz Majewski (Poland), in Pago Pago, American Samoa, on 13 March 2017.This was equalled by Julian O'Shea (Australia), in Pago Pago, American Samoa, on 14 February 2019.
Mariusz Majewski was in Apia (Samoa) at 00:00 local time on 13 March. He then travelled to Nadi (Fiji), Sydney (Australia), Honolulu (Hawaii, USA), and Pago Pago (American Samoa) where local time was still 21:30 on 13 March. At the turn of midnight in Pago Pago he had spent 49 hours within the date of 13 March.
Julian began his record attempt in Apia, Samoa.