A double-precision floating-point value indicating the current playback time in
seconds.
If the media is not yet playing, the value of
currentTime
indicates the
time position within the media at which playback will begin once the
play()
method is called.
Setting
currentTime
to a new value seeks the media to the given time, if
the media is available.
For media without a known duration?such as media being streamed live?it's possible that
the browser may not be able to obtain parts of the media that have expired from the
media buffer. Also, media whose timeline doesn't begin at 0 seconds cannot be seeked to
a time before its timeline's earliest time.
The length of the media in seconds can be determined using the
duration
property.