Accepted Date Formats for API Integrations
Date Format Requirement
All dates sent to FillFaster by API should use the international standard date format:
YYYY-MM-DD- YYYY: 4-digit year (e.g., 2024)
- MM: 2-digit month (e.g., 06 for June)
- DD: 2-digit day (e.g., 05 for the 5th day)
This is the ISO 8601 date format, which is widely used for international data exchange.
Key Points
- Only the date part is used. If you include time or timezone information (e.g., 2024-06-05T14:30:00Z), everything after the date will be ignored.
- This format is required for all date fields in your API requests.
- Locale and timezone are not required—just the date in the specified format.
| Input Sent to API | Date Used by FillFaster | Notes |
|---|---|---|
| 2024-06-05 | 2024-06-05 | Correct ISO 8601 format |
| 2024-06-05T14:30:00Z | 2024-06-05 | Time and timezone ignored |
| 2024-06-05 18:00 | 2024-06-05 | Time ignored |
| 2024-06-05T00:00:00+03:00 | 2024-06-05 | Timezone and time ignored |
| 2024/06/05 | (Invalid) | Use dashes -, not slashes / |
| 06-05-2024 | (Invalid) | Use YYYY-MM-DD order |
❗Incorrect Formats
- 05-06-2024
- 2024/06/05
- 2024.06.05
- 2024-6-5
Always use four digits for the year, two for the month, and two for the day, separated by dashes, as in ISO 8601.
Summary
- Send: YYYY-MM-DD
- Ignore: Any time or timezone after the date
- Why: Ensures consistent, international, and reliable date handling
If you have any questions or need further examples, please contact our support team.