I had not thought of that. Ha! I would go for UTC, since that is what 99.99% of the people think of (and so few even know about TAI, except for the smart ones

I had not thought of that. Ha! I would go for UTC, since that is what 99.99% of the people think of (and so few even know about TAI, except for the smart ones like @jameshart! :-) )