[PRO] How to add date to Post index page

[haken]

http://hakenszmidt.com/blog/

For above site I would like to add a post creation date in the title of a block (Masonry layout)
eg. 2017.10.12 Sitting Elf

Which php file should I edit and how?
I’m new to WP so forgive me because it is probably a silly question;)

[thai]

Hi There,

To enable the date, please navigate to Customizer > Blog > Content > Post Meta > Select ON:

Hope it helps