* add unix time in ms
* update dev docs
* unit tests
* fix spell check
* tool tip
* fix negative unix time input, improve regex, update unit tests, improve error message
* Update error handling and tests
* add tests and fix spelling
* small fixes
* [Tests]Disallow user override of culture options while running tests
* Revert unintended changes to the system's plugin
* Embed utc in the date to run utc tests on other timezones
* enable the functionality to have filename-compatible date & time
* fix PowerToys.sln
* fix DateTime format
* remove unrelated code
* modify date time format
* fix tests
* fix hours to 24h format and modify tests to cover the case better. Simplify tests slightly