How to abbreviate Day?

The ways to abbreviate Day.

4
D:
Day(Construction, Medical, Medicine)
2
DA:
Day(Morse aids, Morse code, Radio)
1
da.:
Day(Genealogical, Genealogy)
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APASmart Define. (2018). day. Retrieved September 21, 2026, from http://smartdefine.org/day/abbreviations/a
ChicagoSmart Define. 2018. "day" http://smartdefine.org/day/abbreviations/a (accessed September 21, 2026).
HarvardSmart Define 2018, day, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/day/abbreviations/a>.
MLASmart Define. "day" 5 February 2018. Web. 21 September 2026. <http://smartdefine.org/day/abbreviations/a>