Water.
Me too! 
Filling up glass again.
Noticing I drank too little today.
Me too. When I eat too little, as I was doing earlier, I tend not to drink enough.
Second beerglass of the day, filled with water. The day is 14 minutes old now. 
Fourteen minutes old, that IS nerdy! 
My clock and the site clock are not synchronised. 
Site clock tells me the day was only 12 minutes and 55 seconds old when I posted.
When Odeon hit 40,000 posts, something must have changed in the time-space continuum! 
Or my clock is ahead of time.
Simple solution of the riddle, and probably the right one.
My cellphone is even more ahead. Helps me being in time in the morning.

Silly, but tricking myself does help.