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October 1, 2025
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STM32L452RE hardware calendar - year range ?

  • October 1, 2025
  • 2 replies
  • 312 views

Hi,

I’m trying to confirm the supported year range for the built-in hardware calendar in the STM32L452RE.

Since the RTC year register is two digits (00–99), does this mean the calendar supports dates from the year 2000 to 2099?

I’d appreciate it if anyone could clarify up to which date the RTC can correctly calculate.

Thanks,

    This topic has been closed for replies.
    Best answer by waclawek.jan

    > Since the RTC year register is two digits (00–99), does this mean the calendar supports dates from the year 2000 to 2099?

    Yes.

    JW

    2 replies

    Super User
    October 1, 2025

    > Since the RTC year register is two digits (00–99), does this mean the calendar supports dates from the year 2000 to 2099?

    Yes.

    JW

    WVC_ANAuthor
    Explorer
    October 2, 2025

    Hi waclawek.jan,

    Thank you for your assistance. The issue has been successfully resolved.

    Thanks,