tshes bco lnga

1) lunar day [period of the phases of the moon, 15 each waxing and waning, ie 1/30 month, its duration [dus kyi rtag longs], is 59 chu tshod, three chu srang, four dbugs, + 16 ri mkha' ri'i cha. in 1 tshes zhag gcig are nyi ma yul gyi chu tshod 4, chu srang 21, dbugs 5, ri ro'i cha 43]; 2) 15 [zla ba'i phyogs rer tshes zhag bco lnga tsam re yod pas grangs bco lnga mtshon] [IW]

1) lunar day; 2) 15 [IW]

1) lunar day [in terms of zla ba'i cha shas 'phel 'grib: length of each of the yar ngor 'phel cha 15 + mar ngor 'grib cha 15 cha: 59 chu tshod, three chu srang, four dbugs, + ri mkha' ri'i cha 16, in 1 tshes zhag nyi ma yul gyi chu tshod 4, chu srang 21 dbugs five ri ro'i cha 43 spyod do]; 2) 15 [because the waxing/ waning periods of the moon are both about 15 days] [IW]

division of time related to lunar crescent, increase or decrease, lunar days [JV]