Module:Get timezone

-- Compute the difference in seconds between local time and UTC. local function get_timezone local now = os.time return os.difftime(now, os.time(os.date("!*t", now))) end timezone = get_timezone

-- Return a timezone string in ISO 8601:2000 standard form (+hhmm or -hhmm) local function get_tzoffset(timezone) local h, m = math.modf(timezone / 3600) return string.format("%+.4d", 100 * h + 60 * m) end tzoffset = get_tzoffset(timezone)

-- debugging for _, tz in ipairs(arg) do if tz == '-' then    tz = timezone  else    tz = 0 + tz  end  print(tz, get_tzoffset(tz)) end --

-- return the timezone offset in seconds, as it was on the time given by ts -- Eric Feliksik local function get_timezone_offset(ts) local utcdate  = os.date("!*t", ts) local localdate = os.date("*t", ts) localdate.isdst = false -- this is the trick return os.difftime(os.time(localdate), os.time(utcdate)) end