We encountered a timezone issue when building a parking booking app, where users in Italy were booking slots for the wrong time due to automatic JavaScript timezone conversions. To fix this, we created a plain date-time string without any timezone information and sent it directly to the API and stored it in the database. This approach ensured that the database received the exact date and time input by the user without unintended timezone conversions or metadata. The issue was caused by JavaScript automatically adding timezone metadata to the date, resulting in storing a different date and time in the database than what users selected. We fixed this by sending a plain string to the API and storing it directly in the database.