Convert date time query parameters to UTC in the API

[sunstep]

Currently, when making use of the API, you have to manually convert your date time queries to UTC to get the correct results in the time that you want. It would be more convenient if users could work with their local time when inputting datetime parameters and that the API Automatically converts it to UTC. Even better would be to convert it client side before it goes to the API.

Version as of writing this: 0.14.4