Thanks to Derek Haines and his inspired blog article social-media-automation-what-is-acceptable I created two blog entries and scheduled them to appear. The first one should have been posted at 5 pm on Friday but nothing happened. By 10 pm when the entry still hadn't been posted, I rescheduled it for Saturday. I tried 00:01 am, but Blogger rejected this as an invalid time. I settled for 01:01 am. On Saturday morning at 9 am, the blog entry appeared.
I can only conclude that wherever Blogger lives, his time zone is 8 hours behind mine. My world clock points to Vancouver, San Francisco or Seattle. So where are you, my friend and why can't you let me use my local clock for scheduling my blogs?