# since - calcuate time since

This is a rewrite of the `since` bash script into rust. 

### usage

Enter a timestamp in `<hh:mm:ss>` and `<yyyy-mm-dd hh:mm:ss>` as well as RFC 3339
timestamp.

```bash
since "2014-11-28T12:00:09Z"
since "2014-11-28 12:00:09"
since "12:00:09"
```