12 hour format modification on Z2 systemui

Hi everyone,

As you all know status bar clock on latest xperia devices doesn't show AM/PM even when the 24 hour format time has been deselected. In Samsung, it was showing. I tried to find more information on this and found that on samsung systemui, there is a parameter 12hourformat on systemui.clock.policy to modify the format string. I tried to find that in Z2 systemui. But couldn't find. Can anybody tell me how can it be done without using xposed? I want to show am/pm on statusbar clock.

Thanks