temporal search constraints

[graybeal]

Is your feature request related to a problem? If so please describe.
Some users only want data if it's in a specific time range.

Describe the solution you'd like
A clear and concise description of what you want to happen.
An interface to constrain the data discovery according to its creation time, e.g., "Only data after xxx / before yyy"

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Incorporating the request into the content availablity feedback. (This would likely be quite hard.)

Additional context
Add any other context or screenshots about the feature request here.