(If you want to break a record that is published in a record book or governed by an international authorithy, there may be other or additional rules. See here for more information.)
4:30 hrs: William A. Fuqua (USA) 1967
5:32 hrs: Mardeana Odom (USA) 1974
5:40 hrs: William A. Fuqua (USA) 1975
5:43 hrs: Melody A. Schick (USA) 1976
6:31 hrs: William A. Fuqua (USA) 1978
7:02 hrs: Wolfgang Kreuzer (Australia) 1980
8:33 hrs: Melody A. Schick (USA) 1981
8:35 hrs: William A. Fuqua (USA) 1982
10:41 hrs: Ivan Jans (Belgium) 1983
10:58 hrs: William A. Fuqua (USA) 1984
12:48 hrs: Willie Nugent (Northern Ireland) 1984
13:00 hrs: Willie Nugent (Northern Ireland) 1985
15:02:55 hrs: Antonio G. dos Santos (Portugal) 1988
16:16:16 hrs:Martin Bukovsek (Germany) 1993
18:05:50 hrs: Radhey Shyam Prajapati (India) 1996
20:10:06 hrs: Om Prakash Singh (India) 1997
30:12 hrs: Akshinthala Seshu Babu (India) 2003
Notes: A claim of 22 hrs by Hatoino Delirio (Portugal) in 1997
was not officially confirmed.
Akshinthala Seshu Babu stood motionless in Mahatma Gandhi's posture with a stick for 25:01 hrs in 2001 and for 35 hours in 2002. The record in 2003 was achieved without a stick.
On 26/27 January 2015, Babu made one more record attempt which lasted 37 hours. Unfortunately, it had to be interrupted because of an insect bite. However, he still stood still for 35:22 hours in total.
Martin Bukovsek set a record for walking slowly on 21/22 June 2013 when he walked 2 metres in 27 hours in Königsfeld, Germany.