use
mp_timelimit 30 //<- means time limit map 30 but it wont end need plugin to force end it
use this plugin
https://forums.alliedmods.net/showthread.php?t=336242
enable these cvars in the plugin
// .::[Enable Hide And Block Feature]::. || 1= Yes || 0= No
gm_enable_hide_and_block "1"
// Force End Map With Command mp_timelimit (Need To Enable gm_enable_hide_and_block) || 1= Yes || 0= No
gm_forceendmap "1"
// Show Timeleft HUD (mp_timelimit) (Need To Enable gm_enable_hide_and_block) || 1= Yes || 0= No
gm_show_timeleft_hud "1"
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