Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3293
Mikel Arteta (Arsenal) 2024
Marco Silva (Fulham) 1467
Eddie Howe (Newcastle United) 1337
Unai Emery (Aston Villa) 979
Andoni Iraola (Bournemouth) 749
Daniel Farke (Leeds United) 734
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1467
Kieran McKenna (Ipswich Town) 1299
John Mousinho (Portsmouth) 899
Danny Röhl (Sheffield Wednesday) 633
Nathan Jones (Charlton Athletic) 519
Chris Davies (Birmingham City) 396
Paul Heckingbottom (Preston North End) 321
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1704
Dave Challinor (Stockport County) 1343
Richie Wellens (Leyton Orient) 1216
Johnnie Jackson (AFC Wimbledon) 1148
Gary Caldwell (Exeter City) 987
Darren Ferguson (Peterborough United) 915
Grant McCann (Doncaster Rovers) 787
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5891
Andy Woodman (Bromley FC) 1561
Dean Brennan (Barnet) 1386
Paul Cook (Chesterfield) 1243
Lee Bell (Crewe Alexandra) 976
Mat Sadler (Walsall) 810
Micky Mellon (Oldham Athletic) 633
  The longest managerial reign of all time in the English football league belongs to Fred Everiss, who was manager of West Bromwich Albion for over 45 years (from 1902 to 1948)