Prefer `{Date,Time}.current` over `.today`/`.now`

`Date.current` and `Time.current` take `Time.zone` and
`config.time_zone` into account, falling back to `Date.today` and
`Time.now` respectively if a zone isn't set.
Is it possible to turn off this auto-whitespace thing for markdown files?

My vim is setup such that a trailing space indicates the paragraph continues (for auto-hard-wrapping prose).