A server-side mod that allows administrators to temporarily mute players from global chat, they still will be able to write in group chats tho.

/mute <player_name> <duration> [duration] [duration] Temporarily mute a player from global chat. Duration format: 1d, 20h, 45m (days, hours, minutes) - can use 1 to 3 arguments in any order. Limits: max 365d, 24h, 60m per argument. Examples: /mute PlayerName 1d, /mute PlayerName 20h 45m, /mute PlayerName 1d 2h 30m

/unmute <player_name> Remove the mute from a player, allowing them to chat again.

/mutelist Display all currently muted players with their remaining mute time.

All commands require the kick privilege.