Revert "close #7 Solve in production problem with dates (UTC vs Europe/London)"

This reverts commit a6c2c4fbf5ac41a8a780cca54e1e3c2a10428cae.
Revert "fix #7 Solve in production problem with dates (UTC vs Europe/London) - murshall/unmarshall DateTime with Europe/London timezone"

This reverts commit 07e7a58ebcfd1e7bfbca5bbc3d9f21ac7fb8d8ef.