Temporizador Vanilla 1.8.X
En este post les adre mi ultima creación, se trata de un temporizador en Vanilla 1.8 (y en un comando)
Funciona a tiempo real, es decir, que el temporizador corre al mismo tiempo que un reloj cualquiera.
Un minuto despues.
El comando puede ser útil en mapas de CTM, para agregar una opción de Speed Run

o algo similar.
IMPORTANTE: El comando tiene un bug de coordinación, por lo que el team no se agrega a tiempo :C
Para evitar esto ejecuten este comando 1 vez, y luego activar el mecanismo.
/scoreboard teams add TIEMPO
Luego de esto el mecanismo funciona correctamente
Para activarlo hay que darle click derecho al cartel que dice "Creado por: lol_600"
o, si lo quieren poner como opción, se activa con esto.
/scoreboard players set @p start 1
Y se detiene con:
/scoreboard players set @p start 0
Y ahora, sin dar mas vueltas, el comando:
/summon FallingSand ~ ~2 ~ {Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{Riding:{TileEntityData:{Command:"/fill ~2 ~-1 ~2 ~-2 ~5 ~14 minecraft:glass 0 hollow",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/fill ~2 ~-2 ~2 ~-2 ~-2 ~14 minecraft:quartz_block 0",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/fill ~1 ~-2 ~3 ~-1 ~6 ~13 air",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/fill ~1 ~-3 ~12 ~-1 ~1 ~12 redstone_block",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"summon FallingSand ~-1 ~3 ~11 {Riding:{Riding:{Riding:{Riding:{TileEntityData:{Command:\"/gamerule commandBlockOutput false\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/gamerule logAdminCommands false\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard objectives add TIEMPO: dummy\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard objectives setdisplay sidebar TIEMPO:\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},id:\"FallingSand\",Block:\"iron_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"summon FallingSand ~-1 ~2 ~13 {Riding:{Riding:{Riding:{Riding:{TileEntityData:{Command:\"/scoreboard objectives add start dummy\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard players set MINUTOS: TIEMPO: 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard players set SEGUNDOS: TIEMPO: 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard teams add TIEMPO\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},id:\"FallingSand\",Block:\"iron_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"summon FallingSand ~0 ~1 ~11 {Riding:{Riding:{Riding:{Riding:{TileEntityData:{Command:\"/scoreboard teams option TIEMPO color green\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard teams join TIEMPO MINUTOS: SEGUNDOS:\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard objectives add tick dummy\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard objectives add tick2 dummy\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},id:\"FallingSand\",Block:\"iron_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"summon FallingSand ~0 ~0 ~13 {Riding:{Riding:{Riding:{TileEntityData:{Command:\"fill ~-2 ~5 ~1 ~2 ~5 ~-11 minecraft:quartz_block 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"summon FallingSand ~0 ~1 ~-10 {id:\\\"FallingSand\\\",Block:\\\"redstone_block\\\",Time:1}\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/tellraw @p [\\\"\\\",{\\\"text\\\":\\\"Maquina ensamblada por \\\",\\\"color\\\":\\\"gold\\\",\\\"bold\\\":\\\"true\\\"},{\\\"text\\\":\\\"lol_600\\\",\\\"color\\\":\\\"green\\\",\\\"bold\\\":\\\"true\\\",\\\"hoverEvent\\\":{\\\"action\\\":\\\"show_text\\\",\\\"value\\\":{\\\"text\\\":\\\"\\\",\\\"extra\\\":[{\\\"text\\\":\\\"Comander 1.8\\\",\\\"color\\\":\\\"green\\\"}]}}}]\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},id:\"FallingSand\",Block:\"iron_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/summon FallingSand ~-1 ~2 ~3 {Riding:{Riding:{Riding:{Riding:{TileEntityData:{Command:\"/fill ~1 ~ ~ ~1 ~4 ~7 stone\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_start_min=1] ~ ~ ~ /scoreboard players add @p tick 1\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_tick2_min=1200] ~ ~ ~ /scoreboard players set @p tick2 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_tick2_min=1199,score_tick2=1199] ~ ~ ~ /scoreboard players set SEGUNDOS: TIEMPO: 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_tick2_min=1199,score_tick2=1199] ~ ~ ~ /scoreboard players add MINUTOS: TIEMPO: 1\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/summon FallingSand ~1 ~1 ~3 {Riding:{Riding:{Riding:{TileEntityData:{Command:\"/fill ~-1 ~ ~ ~-1 ~4 ~7 redstone_block\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_tick_min=20] ~ ~ ~ /scoreboard players add SEGUNDOS: TIEMPO: 1\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/scoreboard players set @a[score_tick_min=20] tick 0\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1},TileEntityData:{Command:\"/execute @p[score_start_min=1] ~ ~ ~ /scoreboard players add @p tick2 1\",id:\"Control\"},id:\"FallingSand\",Block:\"command_block\",Time:1}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/setblock ~ ~-7 ~1 wall_sign 2 0 {Text1:\"===============\",Text2:\"{text:\\\"Click\\\",color:\\\"dark_red\\\",clickEvent:{action:run_command,value:\\\"/fill ~2 ~2 ~ ~-2 ~-4 ~13 air\\\"},extra:[{text:\\\" to remove\\\",color:\\\"black\\\"}]}\",Text3:\"this structure\",Text4:\"===============\"}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/setblock ~ ~-9 ~1 wall_sign 2 0 {Text2:\"{\\\"bold\\\":true,\\\"color\\\":\\\"black\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/scoreboard players set @p start 1\\\"},\\\"text\\\":\\\"Creado por:\\\"}\",Text3:\"{\\\"bold\\\":true,\\\"color\\\":\\\"dark_green\\\",\\\"text\\\":\\\"lol_600\\\"}\",Text1:\"{\\\"bold\\\":true,\\\"strikethrough\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\"}\",Text4:\"{\\\"bold\\\":true,\\\"strikethrough\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\"}\",y:5,x:-775,z:-29,id:\"Sign\"}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/setblock ~ ~-11 ~1 wall_sign 2 0 {Text2:\"{\\\"bold\\\":true,\\\"color\\\":\\\"dark_aqua\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/scoreboard players set @p start 1\\\"},\\\"text\\\":\\\"TIMER\\\"}\",Text3:\"{\\\"bold\\\":true,\\\"color\\\":\\\"dark_purple\\\",\\\"text\\\":\\\"VANILLA\\\"}\",Text1:\"{\\\"bold\\\":true,\\\"strikethrough\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\"}\",Text4:\"{\\\"bold\\\":true,\\\"strikethrough\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\\u003d\\\"}\",y:5,x:-773,z:-29,id:\"Sign\"}",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/fill ~ ~-13 ~ ~-1 ~2 ~ air",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},TileEntityData:{Command:"/fill ~-1 ~-14 ~ ~-1 ~-1 ~ redstone_block",id:"Control"},id:"FallingSand",Block:"command_block",Time:1},id:"FallingSand",Block:"redstone_block",Time:1}
Espero que les haya gustado este comando, no olviden dejar su Wendingo, es gratis

Un saludo y hasta otra.
Linkback: https://minecraftmin.net/index.php?topic=9449.0