Originally Posted by
GhostRider62
That is what nobody can answer for you. But tire weight and a pound or two of weight in general has almost not effect on time to distance and certainly nothing like a high Crr or CdA. Rolling resistance and aero is where time is made. I generally ride Continental GP5000 tires. Tubeless in 25 mm is 300 grams to which you have to add at least 25 grams of sealant. A tubed version weighs 215 grams and with a latex tube, total is just under 290 grams and has lower rolling resistance, especially at lower pressures. I am not saying these are good choices for a commuter.
If you are going to a job where you must be on time, this condition will affect your tire choice. Something like Schwalbe Marathons is what I had on my touring bike that I commuted in lousy conditions. On bluebird days, I had fast tires on my racing bike and besides changing a flat on a good day isn't bad but changing one in the dark, in the rain, with cars splashing you with road kill soup can put a damper in it all. I am unaware if there is a better tire for that duty than the Marathon. I do not like Gatorskins, they ride too rough for me and they are very slow.
I was on salary with no shortage of hours to work, so, 15 minute here or there did not matter. So, I rode pretty fast tires and at that young age, I could pop the tire off and put a new tube in and inflate in 3 minutes max. Not no more. Slower than molasses.