Using an app or a clock or a reliable reminder, you divide your time to one-hour or two-hour breaks. Whenever the alarm or the tool starts to ring or notify you that an hour has passed, you begin to think about those beliefs and values.

For me I try to be mindful every breath that I take, every beat of my heart and every moment as possible.
Maybe it works for me because time is no longer controlling me.

For those who work, setting goals and aiming to achieve something, mindfulness seems obscure because time is their master.