There is significance because this is a divine communication coming via the higher self. They are simply a representation of the divine presence and a kind of affirmation, a kind of validation that you are special. And in the case of the numbers corresponding to your birthdate, this is simply a way the divine realm is choosing to respond to your inner desire and requests for greater closeness, and feedback to confirm you are being heard, and to know that you are being supported, so this is a quite fine example of a divine pat on the back, so to speak, to provide such a validation. This is showing you that your guidance is working when the higher self can impulse you and cause you to note the time at an arbitrary point during the day and see something meaningful on the display. This is good confirmation you can be shown things, you can receive reminders and suggestions, and helpful nudges when appropriate to assist your life journey in the implementation of your life plan.