diff --git a/include/sysio/time.hpp b/include/sysio/time.hpp
index fbad30f..457e0c2 100644
--- a/include/sysio/time.hpp
+++ b/include/sysio/time.hpp
@@ -227,7 +227,7 @@ class block_timestamp {
    bool                     operator!=(const block_timestamp& t) const { return slot != t.slot; }
    uint32_t                 slot                  = 0;
    static constexpr int32_t block_interval_ms     = 500;
-   static constexpr int64_t block_timestamp_epoch = 946684800000ll; // epoch is year 2000
+   static constexpr int64_t block_timestamp_epoch = 1735689600000ll; // epoch is year 2025
                                                                     /// @endcond
  private:
    void set_time_point(const time_point& t) {