UserAgent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Steps to reproduce the problem:
1. timezone and region must be german
2. open developer console, input expression below:
3. new Date(1969, 7, 1);

What is the expected behavior?
Fri Aug 01 1969 00:00:00 GMT+0100 (CEST)
(Firefox gives this correct result.)

What went wrong?
The result in chromium is:
Fri Aug 01 1969 00:00:00 GMT+0200 (CEST)
That's wrong by an hour. It would be the correct daylight saving time. But in 1969 there was no daylight saving time in germany. 

Did this work before? N/A 

Chrome version: 64.0.3282.119 (Developer Build) built on Debian 9.3, running on Debian 9.4 (64-bit)  Channel: n/a
OS Version: 
Flash Version: