Native {{now}} or timestamp variable for filenames (like migrations)?

One issue I’ve noticed is that Cursor doesn’t seem to have a built-in variable like {{now}} or {{date}} that it can auto-recognize and replace with the current timestamp.

For example, when I ask it to generate a migration, it often puts in a random or outdated timestamp in the filename, something like:
20230101000000_create_users_table.sql

Is there any native support for something like {{now}}, {{timestamp}}, or auto-filled dates/times in file generation or prompts?

It would be cool to have this as a built-in variable — especially useful for migrations, logs, file templates, etc. Maybe even something we could use in snippets or filenames, like:
{{now:yyyyMMddHHmmss}}_add_projects_table.sql

Has anyone else run into this?