"it's ... time."

[Elizabeth Phillips]

Thank you for your help with "package store."

I have another question, this time regarding the origin of the use of
"time" in phrases such as "It's Howdy Doody time!" or "it's party time." Do
you know when or under what circumstance such "it's ... time!" phrases came
into vogue?

Thanks,
Elizabeth Phillips
Research Assistant
"On Language"