11:11 keep seeing it

Hi Everyone,
In the last 2-3 months I keep seeing 11:11. This is most frequently on clocks - alarm clock, mobile phone, house clock. But also on my car odometer, and I had to laugh when my new credit card arrived with 11/11 as the expiry date.

This has also been combined with a sense of not having enough time, running out of time, preparing for something?? (to do what I don't know)

Can anyone shed some light on this?

Thanks
Tina