It looks like you might be referring to a time format. The "10010:10" could possibly be a typographical error or a specific format that needs clarification.
If you meant to write 10:10 (which could refer to a time of day, such as 10:10 AM or PM), please clarify your intent.
If there's something specific you need assistance with regarding time calculations, time zones, or related topics, please let me know!