Re: Convert Epoch Date to Serial Date

[Andrew Janke]

On 4/10/19 3:04 PM, Fritz Sonnichsen wrote:
> Thanks Anthony.
>    That seems to work after some code like this.
>      t=localtime(epoch_date)
> bf=sprintf("%d/%d/%d,%d:%d:%d",t.year+1900,t.mon+1,t.mday,t.hour,t.min,t.sec) 
>
>      DTformat='yyyy/mm/dd,HH:MM:SS';
>      datenum(bf,DTformat)
>      numerical_date = datenum(bf,DTformat); %days from January 0, 0000
>
> after some thought the same result can be obtained as follows;
>      numerical_date=  dtetmenum(1)/86400 + datenum(1970,1,1)
>
> would be nice if this was included as an "epoch2serial" utility just to 
> keep make it easy to remember!
>
> cheers
> Fritz

If Octave gets support for the @datetime class, this will become readily 
available: there's a `datetime(x, 'ConvertFrom','posixtime')` option 
that will do this conversion.

Cheers,
Andrew