WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0
Convert a FAT filetime to a Linux Timestamp
$filetime: A FAT File Timestamp, seconds since January 1, 1980, 00:00:00, local Wattmon time
Integer: A Linux Timestamp, seconds since January 1, 1970, 00:00:00, local Wattmon time
Unlike mainline PHP, in uPHP “Linux Timestamps” are based upon the Wattmon's local time, not UTC/GMT.
Technically, the Unix Epoch is defined as being January 1, 1970, 00:00:00 GMT. But on the Wattmon, timestamps are relative to January 1, 1970, 00:00:00 local timezone.
If the Wattmon clock and timezone are set to UTC+00 (GMT) then the uPHP timestamp is the same as mainline PHP, otherwise not.
In uPHP on the Wattmon this simplification is referred to as a “Linux Timestamp” but it should be noted that it may not be exactly the same, depending on the Wattmon's timezone settings.
In other words: Wattmon “Linux Timestamps” are based upon local Wattmon time and are not adjusted by the timezone setting in Control Panel > Time Settings (Time and Date Settings) > UTC Offset. (These settings are stored in /config/time.ini.)
findfirst() - Start searching the current folder for files matching a pattern and attributes
findnext() - Return next matching file information (after a findfirst)
microtime() - Return the number of milliseconds since boot
mktime() - Return the Linux Timestamp for a given date and time
settime() - Set the system time from a Linux Timestamp, with optional calibration
strftime() - Format a Linux Timestamp using a format string
time() - Return the current system timestamp
uptime() - Return the uptime in milliseconds