c727 9c40c32e95 Add timezone to snapshot timestamp (#360)
* Add timezone to snapshot timestamp

```
old: 2018-02-14T15:13:46.391829
new: 2018-02-14T15:13:46.391829+00:00
```

* Update __init__.py

* Move code to dt util

* Lint

* Lint 2

* Update dt.py

* Update __init__.py
2018-02-17 16:13:23 +01:00
..