Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3291
Mikel Arteta (Arsenal) 2022
Marco Silva (Fulham) 1465
Eddie Howe (Newcastle United) 1335
Unai Emery (Aston Villa) 977
Andoni Iraola (Bournemouth) 747
Daniel Farke (Leeds United) 732
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1465
Kieran McKenna (Ipswich Town) 1297
John Mousinho (Portsmouth) 897
Danny Röhl (Sheffield Wednesday) 631
Nathan Jones (Charlton Athletic) 517
Chris Davies (Birmingham City) 394
Paul Heckingbottom (Preston North End) 319
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1702
Dave Challinor (Stockport County) 1341
Richie Wellens (Leyton Orient) 1214
Johnnie Jackson (AFC Wimbledon) 1146
Gary Caldwell (Exeter City) 985
Darren Ferguson (Peterborough United) 913
Grant McCann (Doncaster Rovers) 785
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5889
Andy Woodman (Bromley FC) 1559
Dean Brennan (Barnet) 1384
Paul Cook (Chesterfield) 1241
Lee Bell (Crewe Alexandra) 974
Mat Sadler (Walsall) 808
Micky Mellon (Oldham Athletic) 631
  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)