iOS 7 Time Font on status bar

i'm making a tweak for changing ios 6's status bar time font. The question is, what's the font of ios 7 status bar time text? don't say it's helvetica neue, because it's way bolder and different than that font. i changed all fonts in /System/Library/Fonts . and that changed the font of StatusBar clock as well. but i couldn't get the same look of ios 7 maybe font size is different ? i'm gonna hook the view of statusbar text and re-draw everything but i couldn't find the font yet.