[LUA] Zeit/Datum addieren

zeit = os.time()
print(os.difftime(os.time(), zeit))

local clock = os.clock
function sleep(n)
  local t = clock()
  while clock() - t <= n do end
end

function explode(div,str) -- credit: http://richard.warburton.it
  if (div=='') then return false end
  local pos,arr = 0,{}
  for st,sp in function() return string.find(str,div,pos,true) end do
    table.insert(arr,string.sub(str,pos,st-1))
    pos = sp + 1
  end
  table.insert(arr,string.sub(str,pos))
  return arr
end

local first = os.date("%c")
sleep(2)
local second = os.date("%c")
local tab = explode(" ", first)
local tab2 = explode(" ", second)

local seconds1 = explode(":", tab[2])
local seconds2 = explode(":", tab2[2])
local date1 = explode("/", tab[1])
local date2 = explode("/", tab2[1])


metaT={}
metaT.__add = function(table1, table2)
	local tab = {}
	tab[1] = table1[1] + table2[1]
	tab[2] = table1[2] + table2[2]
	tab[3] = table1[3] + table2[3]
	return tab
end
setmetatable(seconds2, metaT)
setmetatable(date2, metaT)

local new_second = seconds2 + seconds1
local new_date = date2 + date1

local seconds = {24,60,60}
for i = 3, 1, -1 do
	while new_second[i] >= seconds[i] do
		if i ~= 1 then
			new_second[i] = new_second[i] - seconds[i]
			new_second[i-1] = new_second[i-1] + 1
		else
			new_date[2] = new_date[2] + 1
		end
	end
end

local days = {99999999, 31, 12}
local new_sets = {3,1,2}
for i = 2, 1, -1 do
	while new_date[i] >= days[i] do
		new_date[i] = new_date[i] - days[i]
		new_date[new_sets[i]] = new_date[new_sets[i]] + 1
	end
end

for _,v in ipairs(new_second) do
	if v < 10 then new_second[_] = "0"..new_second[_] end
end

for _,v in ipairs(new_date) do
	if v < 10 then new_date[_] = "0"..new_date[_] end
end

local out = new_date[1].."/"..new_date[2].."/"..new_date[3].." "..new_second[1]..":"..new_second[2]..":"..new_second[3]

print(out)



--> 08/12/28 04:18:34