ame wrote:... how can you know that the camera time is wrong? what is your standard clock?
Hagnat wrote:When the cam time is not in accordance with the time in time zone UTC+2, the time of the cam is wrong.
I am pretty sure that you have noticed differences several times yourself.
Usually it are only minutes but I have seen much more. ...
... Estonia, Latvia and Lithuania are in zone UTC+2. If the timestamp of a Baltic webcam is beside that time it is wrong. Very simple. What the time over here is makes no difference, but it is easy to convert to eastern European time. ...
My screenshots are automatically saved with the actual date/time in the filename. ...
Only a couple of days ago I mentioned 2-3 minutes difference between real time and the stamp on a cam. As I said earlier, on other cams we sometimes have seen much greater differences, but with the help of your own time it is easy to know what the real time must be. But this does not work with the pictures and videos in the archive. Wrong times there will stay wrong.
do i understand correct: you take your computer time as the real, correct time (after converting it to EET)?
i think that if the camera time and the computer time differ then the pc time is wrong. the pc takes it time from the internet when the computer is turned on. then the pc clock begins to tick in its own pace. after a while it will go wrong. (this is amazing because there should be an absolutely accurate atomic oscillator in the computer which clocks the functioning of the pc. however, the program which controls the clock that we see will go wrong.)
another thing puzzles me: how can you tell if the archive times are wrong?
in the archive the videos and pictures are named with approximate times. the 1-min pictures are taken at intervals slightly longer than 60 s so the camera time on them slowly shifts. in the end the minute reading in the camera time will be different than the minute reading in the file name. that is no problem: the camera time is right. the videos are named with the hour and minute readings. i haven't noticed any disagreements in those readings.
i use VLC for recording videos and taking snapshots and they are named automatically with the time taken from the pc. there is usually a small difference of a few seconds between the camera time and the file name taken from the pc time. if i think that the difference is too large i set the time in my pc according to the camera time. pc time may be whatever else, either set automatically or by hand. when i post videos i name the video file according to the start time of the video's camera time.
my point here is that contrary to you i think that the camera time is the correct time for timing events in the nest. the pc time may be almost anything, and i think that it can never be right to more than to an accuracy of a few seconds.
(but i haven't seen disagreements of the order minutes... that sounds very large. how can that be possible?)
Hagnat wrote:... Then you need to use always the same time source and it must be a time source that is not changing. ...
i totally agree on the necessity to use one single time source. in the case of the live cameras the source must be the camera time. it is universal to all viewers. the pc times for each of us are different.