Steps to Reproduce:

1. install Wikimedia 1.34
2. install Wikibase extension 1.34

in the Wikibase client:

3. create a test property X, with data type Time https://www.wikidata.org/wiki/Special:ListDatatypes#time
4. Create a test item Y
5. Assign a new statement to test item Y, using property X.
6. you will be able to enter a time now

Expected result:

• you are able to enter a time, with precision up to a "second"
• the data field will accept ISO 8601 times, eg +2013-01-01T00:00:00Z

Actual Results:

• maximum "precision" (there is a dropdown for this) is listed to be a "day"
• the data field will NOT accept ISO 8601 times, eg +2013-01-01T00:00:00Z, only dates (consistent with the dropdown list that says precision can be maximum "day")