Minecraft Tutorial: Timer in 1.9 with Scoreboard

Scoreboard ===============================
/scoreboard objectives add Timer dummy

Mecanismo ================================

Repeat / Unconditional / Always Active


/scoreboard players add Ticks Timer 1

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Chain/ Conditional / Always Active

/scoreboard players test Ticks Timer 26 27
/scoreboard players add Seconds Timer 1
/scoreboard players set Ticks Timer 0
/scoreboard players test Seconds Timer 60 60
/scoreboard players add Minutes Timer 1
/scoreboard players set Seconds Timer 0
/scoreboard players test Minutes Timer 5 5
/scoreboard players set Minutes Timer 0
/scoreboard players set Ticks Timer 0

Timer na Tela ============================


Repeat / Unconditional / Always Active

/title @a title ["",{"text":" "}]

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Chain/ Conditional / Always Active

/title @a subtitle ["",{"text":"0","color":"blue"},{"score":{"name":"Minutes","objective":"Timer"},"color":"blue"},{"text":":","color":"blue"},{"score":{"name":"Seconds","objective":"Timer"},"color":"blue"}]