mtimer/system/get_times.lua

local m = mtimer


local get_real_time = function (player_name)
    local player = minetest.get_player_by_name(player_name)
    local _offset = player:get_meta():get_string(m.meta.timezone_offset.key)
    local _server_timestamp = os.time()

    return {
        offset = _offset,
        server_timestamp = _server_timestamp,
        local_timestamp = _server_timestamp + ((_offset*60)*60)
    }
end


local get_ingame_time = function (player_name)
    local player = minetest.get_player_by_name(player_name)
    local format = player:get_meta():get_string(m.meta.ingame_time.key)
    local time_of_day = tostring((minetest.get_timeofday() * 24000) * 3.6)
    local ingame_timestamp = tonumber(string.format("%.0f", time_of_day))

    local values = {
        hours_24 = os.date('!%H', ingame_timestamp),
        hours_12 = os.date('!%I', ingame_timestamp),
        minutes = os.date('!%M', ingame_timestamp),
        ingame_timestamp = ingame_timestamp,
        format = format
    }

    values['formatted'] = format:gsub('{[a-z0-9]+}', {
        ['{24h}'] = values.hours_24,
        ['{12h}'] = values.hours_12,
        ['{min}'] = values.minutes,
        ['{its}'] = values.ingame_timestamp
    })

    return values
end


mtimer.get_times = function (player_name)
    return {
        real_time = get_real_time(player_name),
        ingame_time = get_ingame_time(player_name)
    }
end