Hi and thanks again.
Yes , I have a rtc ds1307 module.
I read the rtc time and it is ok works fine.
I need to use alarm function from timealarm library so like you said
in setup function I must put :
setTime(RTC.get()) without any setSyncProvider
is it right?
another question , if I put want to use one of next functions (web page push a button and define one of them)
Alarm.alarmRepeat
Alarm.timerRepeat
Alarm.timerOnce
I have how delete/deselect/unrun them in one moment without reset arduino?
Many thanks again for your support