# SD card file with wrong date

**URL:** <https://community.purpleair.com/t/sd-card-file-with-wrong-date/8477>\
**Category:** Data\
**Created:** [April 19, 2024, 1:59am UTC](https://community.purpleair.com/t/sd-card-file-with-wrong-date/8477 "2024-04-19T01:59:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![John\_PurpleAir](https://sea2.discourse-cdn.com/flex020/user_avatar/community.purpleair.com/john_purpleair/32/1557_2.png) [@John\_PurpleAir](https://community.purpleair.com/u/John_PurpleAir)\
**Post date:** [April 19, 2024, 9:52pm UTC](https://community.purpleair.com/t/sd-card-file-with-wrong-date/8477/2 "2024-04-19T21:52:48Z")

</div>

Hello,

All SD-capable sensors have real-time clocks in them, and it’s possible that the real-time clock on your sensor may have drifted apart and needs to be resynced. Here is an instruction on how to resync the real-time clock in your device: [SD Card Logging and Troubleshooting](https://community.purpleair.com/t/sd-card-logging-and-troubleshooting/543#why-does-the-sd-data-have-an-incorrect-date-6)

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