Super it worked. Thank you for the quick help!
I added H:i in front of the date codes to get the time of the post also
I strongly recommend to build this into a child theme, otherwise you are going to regret it when BuddyPress is updated in future.
https://codex.buddypress.org/how-to-guides/building-a-buddypress-child-theme/
for me the same thing not only on bp-default/index.php
even in single blog post at bp-default/single.php
Anyway +1 for @DJPaul suggestion.
Since you’ve dug up a 3 month old post, the theme for the future 1.3 release has these switched to date now 
Gosh! omg it worked like a charm!! replacing the index.php AND single.php is a must.. to assure both pages on display or on post display.. for date to appear time appears when it’s less that 1 day old..
Thanks alot!
Since this is the only thread I can find on the subject . . .
How is this done with the current version of BuddyPress? The default index.php no longer looks much like mercime’s version above, and I quite simply can’t find the right code to tweak.
(Works fine on the individual posts, of course.)
I’m sure it’d be better in a child theme, but the child themes others have created don’t include an index.php, and I’m not much interested in creating my own.
It would have been better to start a new thread, but….
bp default theme index.php still has “ in it.
If you copy the index.php from the buddypress parent (ie: http://yoursite.com/wp-content/plugins/bp-themes/bp-default/index.php or your current alternative parent) theme to the child theme then it doesn’t take much creation…..
all you need to do then is the edit suggested by mercime…
Edit
“
to
“
and you’re done.
