delete time machine backups

Jurgs wrote:

i have two back-ups with time machine and the external drive is almost full. how can i delete older backups?

Typically TM manages its own backups. It is not advised to manually mess with the database.

You can however start over trouble free—

Erase and reformat a storage device in Disk Utility on Mac

Erase and reformat a storage device in Disk Utility on Mac - Apple Support