Php function to convert from 64bit ntp timestamp
- Thread starter Wimnat
- Start date
iirc, the most significant 32 bits are the number of seconds in unix time, and the lower 32 bits are the fractions of a second - 2^32-1 being almost 1 second.
I use BC math functions here because I don't believe that integer math of more than 32 bit precision is guarenteed in PHP :
I use BC math functions here because I don't believe that integer math of more than 32 bit precision is guarenteed in PHP :
Code:
$t = "5063470863794978160";
$n_32 = bcpow(2, 32);
$unix_time = bcdiv($t, $n_32);
$fraction = bcmod($t, $n_32);
printf("NTP time : %u:%u\n", $unix_time, $fraction);
echo " = : " . strftime("%c", $unix_time) . "\n";