Is your feature request related to a problem? Please describe.

I set timezone explicitly in config.yaml like:

timeZone: Asia/Tokyo
params:
  dateFormat: January 2, 2006 at 3:04 PM MST
  shortDateFormat: 15:04 MST — Jan 2
  enableLastMod: true

Then, issue date was rendered in expected timezone (JST in this case). But, last modified date was not.

issue metadata:

---
title: Sample Issue
date: 2022-10-27 01:00:00
...

rendered issue header:

rendered issue footer:

Describe the solution you'd like
A clear and concise description of what you want to happen.

If cstate prioritized backward compatibility, I would introduce forceUTCInLastMod: true|false (default is true).

Or, it would be fine just to remove .UTC part from:

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context

none.