Ability detect timecard change in time validation rule

Summary:

We have a requirement to detect changes done in an approved time card.

• We need to detect new rows entered
• We need to detect attribute changed
• We need to detect hours changed

Is it possible to fetch the old/new value in the time entry rules?

Thanks

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):