This reckons each of a days 24 hours apart from noon as part of a fourth of the day. 7 am was the first hour of the first half of daytime; 1 pm the first hour of the latter half of daytime; 7 pm the first hour of the first half of nighttime; and 1 am the first hour of the latter half of nighttime. This system existed in the Ayutthaya Kingdom, deriving its current phrasing from the practice of publicly announcing the daytime hours with a gong and the nighttime hours with a drum. It was abolished in Laos and Cambodia during their French occupation and is uncommon there now. The Thai system remains in informal use in the form codified in 1901 by King Chulalongkorn. India
The Vedas and Puranas employed units of time based on the sidereal day (nakṣatra ahorātram). This was variously divided into 30 muhūtras of 48 minutes each or 60 dandas or nadís of 24 minutes each. The solar day was later similarly divided into 60 ghaṭikás of about the same duration, each divided in turn into 60 vinadis. The Sinhalese followed a similar system but called their sixtieth of a day a peya.
Dyschromatosis universalis hereditaria is a rare genodermatosis characterized by reticulate hyper- and hypo- pigmentated macules in a generalized distribution. : 856 Both autosomal dominant and recessive inheritance have been reported with the disorder.It has been associated with mutations in genes SASH1 and ABCB6. References
External links

Dyschromatosis universalis hereditaria: Two cases, Dermatology Online Journal.