Webster's 1828 Dictionary
TIME-SERVER
n.[time and serve. ] One who adapts his opinions and manners to the times; one who obsequiously complies with the ruling power.
New American Oxford Dictionary
time-server
time-serv er |taɪm ˈsərvər | ▶noun 1 a person who changes their views to suit the prevailing circumstances or fashion. 2 a person who makes very little effort at work because they are waiting to leave or retire. 3 ( time server ) Computing a server that distributes synchronized time information to all members of a network. DERIVATIVES time-serv ing adjective
Oxford Dictionary
time-server
time-server ▶noun 1 a person who makes very little effort at work because they are waiting to leave or retire. 2 a person who changes their views to suit the prevailing circumstances or fashion. 3 ( time server ) Computing a server that distributes synchronized time information to all members of a network. DERIVATIVES time-serving adjective
Oxford Thesaurus
time-server
time-server noun the party is filling key state posts with its own loyal time-servers: equivocator, trimmer, Vicar of Bray; hypocrite, Janus, double-dealer, snake in the grass; sycophant, toady, crawler, fawner, truckler, groveller, kowtower, minion, hanger-on, leech, puppet, spaniel; informal bootlicker, yes-man; rare tergiversator.