System logs are stored till seconds and not till millisecondsSummarySystem logs are stored till seconds and not till milliseconds From ServiceNow perspective, the system logs are stored till seconds and not till milliseconds. This would be a great candidate for an IDEA request to be implemented in future releases. Please follow the KB article KB0755878 - Idea Management for customer enhancement requests while submitting an IDEA request. You can create an IDEA request with proper business justification and all the details about your request.