-- John Longworth   December 2017
-- This program gets the time from an SNTP server and sets the internal RTC
-- Uses rtctime & sntp modules
 
local days = {"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"}

sntp.sync({"0.uk.pool.ntp.org", "1.uk.pool.ntp.org"},
function(sec, usec, server, info)
    print("\nSeconds: "..sec,"Micro seconds: "..usec,"Server: ".. server)
    rtctime.set(sec, usec)
    tm = rtctime.epoch2cal(rtctime.get())   
    sdate = string.format("\n%02d/%02d/%04d %02d:%02d:%02d", 
    tm["day"], tm["mon"], tm["year"], tm["hour"], tm["min"], tm["sec"])
    sdate = sdate.."  "..days[tm["wday"]].."  Day number "..tm["yday"].." of the year."
    print(sdate)        
    print(string.format("\nToday is: %04d/%02d/%02d %02d:%02d:%02d", 
    tm["year"], tm["mon"], tm["day"], tm["hour"], tm["min"], tm["sec"])) 
end,
function()
    print('Failed!')
end,
autoreset)