| APA | Universal Decimal Time (UDT). (2012, February 14). In Acronym Geek. Retrieved 05:58, February 14, 2012, from http://www.acronymgeek.com/UDT/Universal_Decimal_Time |
| MLA | "Universal Decimal Time (UDT)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/UDT/Universal_Decimal_Time>. |
| MHRA | 'Universal Decimal Time (UDT)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/UDT/Universal_Decimal_Time> [accessed 14 February 2012] |
| Chicago | "Universal Decimal Time (UDT)", http://www.acronymgeek.com/UDT/Universal_Decimal_Time (accessed February 14, 2012). |
| CBE/CSE | Universal Decimal Time (UDT) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/UDT/Universal_Decimal_Time. |
| Bluebook | Universal Decimal Time (UDT), http://www.acronymgeek.com/UDT/Universal_Decimal_Time (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Universal Decimal Time (UDT), http://www.acronymgeek.com/UDT/Universal_Decimal_Time (optional description here) (as of Feb. 14, 2012, 05:58). |
| AMA | Universal Decimal Time (UDT). Acronym Geek. February 14, 2012, 05:58. Available at: http://www.acronymgeek.com/UDT/Universal_Decimal_Time. Accessed February 14, 2012, 05:58. |