Enter time in 12h format?

[JamesValero]

How can we enable entering time in 12h format?

Example: Instead of entering 17:15, we would write 5:15pm

[artk42]

+1 for that.
The regular request is "tz 1pm PST"

[jdtzmn]

@JamesValero @ArtK47 I've opened a pull request (#47)