Do I need to write 365 days when applying for an extension on my TM7 form?

When filling out the TM7 form for a visa extension, you should write the number of days corresponding to your specific extension request. If you're applying for a one-year extension (such as for retirement), you would enter 365 days. If you're extending a tourist visa or visiting family, you would indicate a shorter duration, such as 30 or 60 days, respectively.