Createtime
Createtime refers to a timestamp marking when an entity was created. It is used to establish provenance, support auditing, enable versioning, and aid data retention. The exact meaning can vary by system, and it is not a universal standard. In many Unix-like systems, the common timestamps are atime (last access), mtime (last modification), and ctime (change). Creation time may not be available or standardized in all environments. Some filesystems, such as ext4, HFS+, and NTFS, offer a birth time or crtime, which some tools can expose, while others rely on application-managed timestamps.
In databases and application code, createtime is typically stored as a field such as created_at or creation_time.
Best practices include recording createtime at the moment of creation, using a uniform time standard (preferably