Hello,
This is because
dragPecisionX determines how far to move from the starting point which is
January 1, 1970 for the date type axis. If you look at demo you can see what I mean:
https://jsfiddle.net/BlackLabel/otcpe5az/
As a workaround in your case you can subtract 95000 ms from
dragPrecisionX value.
Demo:
https://jsfiddle.net/BlackLabel/98cdymsb/
Let me know if you have any further questions!
Best regards!