It occurs to me that there's no pegasus schema type for timestamps or date(times).

How about this model? https://github.com/linkedin/datahub/blob/master/li-utils/src/main/pegasus/com/linkedin/common/Time.pdl

Ah yeah I found that one but I kind of assumed that these, being part of a separate package, were not intended to be used as a metadata model for the dataset fields. Aside from being able to copy it and rename it of course.

np. consider these as "common models" that can be leveraged. we'll try to improve the project organization to make it clearer.