How would I make this timer script the same time for all players instead of local?{Still Unsolved}

Basically, I need to script to be a timer script that's the same for everyone, not local. I'm currently experiencing problems that whenever I reset/die, the time resets back to its full time. How would I make it so the time is the same for all the players, would I create a IntValue or something?... Script Below

time=0
while true do
wait()
time=time+30
for i=1, 30 do
    time=time-1
    wait(1)
    for i, player in pairs(game.Players:GetPlayers()) do
    player.PlayerGui.TimerSet.Frame.Time.Text=tostring(time) 
end
end

time=time+45
for i=1, 45 do
    time=time-1
    wait(1)
    for i, player in pairs(game.Players:GetPlayers()) do
    player.PlayerGui.TimerSet.Frame.Time.Text=tostring(time)
end
end
for i, player in pairs(game.Players:GetPlayers()) do
player.Character.Humanoid.Health = 0
player.Character.Humanoid.MaxHealth = 0
end
end

Thanks!

t=game.Workspace.Timer.Value
while true do
wait()
t=t+30
for i=1, 30 do
    t=t-1
    wait(1)
    for i, player in pairs(game.Players:GetPlayers()) do
    player.PlayerGui.TimerSet.Frame.Time.Text=tostring(t) 
end
end

t=t+45
for i=1, 45 do
    t=t-1
    wait(1)
    for i, player in pairs(game.Players:GetPlayers()) do
    player.PlayerGui.TimerSet.Frame.Time.Text=tostring(t)
end
end
for i, player in pairs(game.Players:GetPlayers()) do
player.Character.Humanoid.Health = 0
player.Character.Humanoid.MaxHealth = 0
end
end