Turn to the Increments and Corrections page for the minutes of UT, and read the increment on the line for the seconds. Add it to the whole-hour GHA. On the same page, look up the d correction for the minutes, and apply it to the declination.

The d correction's sign: compare the next hour's declination. If the declination is getting larger the correction is +; if it is getting smaller, −.

Move the minutes and seconds past 14h. The gold arc is the increment.

GHA at 14h (daily page): 33°33.6'
Increment for 24m 37s: + 6°09.3'
GHA at 14h 24m 37s: 39°42.9'
Dec at 14h (daily page): S 08°39.4'
d correction (d 0.9′, 24 min): +0.4′
Dec at 14h 24m 37s: S 08°39.8'

15° an hour is 15′ a minute and 1′ every 4 seconds. The d correction uses whole minutes only.

Minutes and seconds past 14h

At 14h24m37s UT on October 15, 2026:

GHA 33°33.6' + increment 6°09.3' = 39°42.9'

Dec S 08°39.4', d correction +0.4′ (growing) = S 08°39.8'

Minutes and seconds past the hour