None of the symbols tried above display on my browser.
In html, no "figures" are transmitted. The only thing in the file is a character code (a number, either decimal or hex). A font/typeface must be declared if you change fonts to find a special character, and a simple copy and paste doesn't normally inform the page of a change of typeface, so the "character" you paste will be displayed in whatever font is set for the reader's browser. Since the same character number may display a different glyph (picture) in another font, the reader/viewer usually just gets trash. A few "full set" fonts include more symbols and special characters than others, but the special characters generally appear at "high number" character values that will be rendered as "undefined" if the viewer is not using the same font or a similar extended font.
The extended fonts that might include the symbols people have attempted to paste generally must use Unicode character encoding, since the simple ASCII/ANSI character sets simply "don't have enough numbers" to indicate or to display them without changing fonts.
While WinXP theoretically is capable of using Unicode character sets, and Win2K theoretically can be given full Unicode capability, few people have made the changes/selections/settings necessary. Older Windows operating systems can "simulate" using Unicode, but only to a limited extent. Some browsers include limited ability to render a few Unicode extended characters by substituting ASCII/ANSI fonts, but it's difficult to know in advance which ones will work. If you find a way to "paste" an exotic character, only a few of your readers will be able to see it in most cases.
But as I pointed out, although I do know "ways" to post the symbols, I choose to claim the inability of most readers to display them as my excuse for not doing the math.
I presume that those immediately above have chosen to drift the thread into trying to post the symbols as their excuse for not doing the math for themselves.
I'll blow your excuses for evading the real problem by pointing out that you don't really have to do the math to figure out the stated problem for yourselves, if you care to make a few sketches and do a bit of thinking.
For purposes of your "picture analyses" of the earliest sunrise/latest sunset problem, I'll point out the additional hint that the geometry is not symmetrical in or about any plane of reference except at the instant of a solstice or equinox.