I am working on a SQLite file from a client and found a column marked as TIMESTAMP, I have work in the past with php timestamp with 10 digits, this file has time stamps with 9 digits to the left and 6 to the right:
570822838.260406
570822838.544408
570822846.167604
I do not know how to convert this numbers to date-times or how are they calculated. Any help? Thanks.