There are several forms of Emacs ( including at least Montgomery, Gosling, GNU Emacs, XEmacs, microEmacs, CodEd ( I believe it was derived from microEmacs ), etc. So let's be specific, if I run GNU Emacs 23.1.1 and from the menu below the top of the window, I go through this sequence of menu choices:
Help->More Manuals->All Other Manuals(Info)
when that loads, if I type lower case m, I get the prompt
If I type
followed by the enter key, I'm taken right to the info pages on the date command, in an Emacs buffer. The Emacs buffer is in "Info" mode so I can tab around just as I could if I were running "info date" in a terminal window, outside Emacs.
If you are using some similar form of GNU Emacs, with menu choices which work as I've described, then perhaps you could help us understand what you feel is wrong with that way of accessing info pages on the date command from within Emacs, so we could help you find some way of doing it that you feel is more appropriate to your needs.
If you are using a different form of Emacs, please let us know that.