Enter Up or Down, or click the spin buttons for each input field.

- Emtpy values, no steps
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week
- Invalid values, no steps
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week
- Emtpy values, invalid steps
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week
- Invalid values, invalid steps
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week
- Emtpy values, step=any
  s
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week
- Invalid values, step=any
  - date:
  - datetime:
  - datetime-local:
  - month:
  - time:
  - week

The input fields should show the current local/UTC date/time (with + or - a unit date/time described below except for step=any).

Unit dates/times

- date: 1 day (local time)
- datetime: 1 minute (UTC)
- datetime-local: 1 minute (local time)
- month: 1 month (local time)
- time: 1 minute (local time)
- week: 1 week (local time)

As for step=any, the values don't change by stepping-up/-down.