To establish the default value of a date field as the current date-time value in ServiceNow, adhere to the following procedure. Firstly, access the customization options for the specific date field within the designated form. Locate the settings related to the default value and opt for "Use dynamic default" or an equivalent choice. Next, select the appropriate function, such as "javascript:gs.nowDateTime()", to retrieve the current
date and time value. Subsequently, save the modifications made. As a result, the date field will consistently populate with the present date and time information whenever the form is accessed.