Hello Old Pedant
Many thanks for your comprehensive reply.
Eleven years ago?! We all get older!
That's a fairly in-depth article. It seems to me that you are making two important points especially:
1) The display format must be specified in each place;
2) Display does not mean 'stored'.
Regarding (1), I think you are referring to applications, but I have actually included the 'Include' file on each separate WEB page and that works fine.
Concerning point (2), I am not using a MS Access (or any other database) to store the date, but I am grateful that you have pointed out the difference.
My question yesterday related ONLY to the display of the date.
If I am in the UK and it's 2am and the day and date is today (for me), but the Web page is showing yesterday's day and date, it LOOKS inaccurate to the UK site visitor for the simple reason that it IS inaccurate because yesterday has passed.
In other words, it would reflect poorly on the site as a whole - it would look as if the date on the site had not 'kept up' with real time, if you see what I mean!
Thanks again, OP (in another life, maybe you could teach Astrophysics!).