Issue506 meteoview2 data timezone to step2

[Shrhawk]

Checklist:

• [ ] All tests are passing
• [ ] I have added any necessary documentation and/or release notes
• [ ] I have followed the commit message guidelines and the "before submitting a pull request" guidelines
• [ ] If I introduced (or abolished) any third-party library, I will write a short paragraph in this PR according to the guidelines
• [ ] I have removed all obsoleted code

[codecov[bot]]

Codecov Report

Merging #512 (4bb2feb) into master (86c46c0) will increase coverage by 0.00%. Report is 3 commits behind head on master. The diff coverage is 100.00%.

:exclamation: Current head 4bb2feb differs from pull request most recent head 2f0c05c. Consider uploading reports for the commit 2f0c05c to get more accurate results

@@           Coverage Diff           @@
##           master     #512   +/-   ##
=======================================
  Coverage   98.18%   98.18%           
=======================================
  Files          41       41           
  Lines        2143     2144    +1     
=======================================
+ Hits         2104     2105    +1     
  Misses         39       39           

Files	Coverage Δ
enhydris/telemetry/types/meteoview2.py	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[aptiko]

I made many changes and fixed it in 488a82edc04196c4d1ef07fe5e6c843103a4df00.