This plugin adds countdown to c4 bomb explosion to your server.
The countdown can look any way you want it to look. All you have to do is customize the configuration to your liking.
{
"EnableTimer": true,
"EnableProgressBar": true,
"TimerStarting": 45,
"LeftSideTimer": "-[ ",
"RightSideTimer": " ]-",
"EnableColorMessage": true,
"SidesTimerColor": "45:white",
"TimeColor": "20:yellow, 10:red, 5:darkred",
"ProgressBarColor": "20:yellow, 10:red, 5:darkred"
}