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Asked: 2026-05-25T01:51:31+00:00

For a low end embedded microcontroller (8-bit), which timestamp structure would be smallest? I’m

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For a low end embedded microcontroller (8-bit), which timestamp structure would be smallest? I’m considering custom ones too. Because of computing power is very limited, it’s also important to reading second, hour, or day etc. should be fast too.

This question covers my question, but i need to represent next minimum 10 years with resolution of second.

Update:
I will store many timestamps in limited EEPROM space. So size efficiency has more weight on my case. Calculations (determining current timestamp is greater than another 2 or 3 one, displaying current timestamp on a custom design lcd) generally takes place on every second.

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1 Answer

  1. Editorial Team

    i need to represent next minimum 10 years with resolution of second

    If you use an int32_t you’re good until 2038 with these timestamps, and with uint32_t you can cover until 2106. Using localtime, gmtime and such you can convert them into struct tm if you need and extract the day, month etc.

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