0:46Ch                   Long integer with Timer Counter

 Length: 4 bytes

    Holds the number of ticks needed to reflect the current time in a 4-
    byte integer. Every timer tick (18.2 per second) activates INT 08h,
    which increases this value by 1. After this value reaches midnight
    (1800B0h), it is set to 0 and the byte at 0:470h is set to 1.

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       Notes:         Use INT 1Ah, Service 00h, to obtain this value. Note
                      that doing so clears the overflow flag at 0:470h.