Julian Barbour, a modern-day "gentleman scientist" has a couple books devoted to time:
The End of Time (reimagining physics without time)
https://www.amazon.com/End-Time-Next-Revolution-Physics/dp/0195145925
The Janus Point: A New Theory of Time
https://www.amazon.com/Janus-Point-New-Theory-Time-ebook/dp/B083J14S57
My physics background is weak for understanding the finer points, but a lot of the material is accessible to people who enjoy questioning their basic assumptions. The idea of "nested nows" for example.