13 December 2025 - Holiday, Chinese Date, Moon Phase
13 December 2025 falls on a Saturday in the Gregorian calendar. In the traditional Chinese calendar, this date is 十月廿四, in the year of the Snake (乙巳 Yǐ Sì). There are no holidays recorded on this date.
The moon is in its Last Quarter phase, about 42% illuminated (day 22.9 of the 29.5-day lunar cycle). Alongside the calendar info, this page also shows the astrological context: the Western zodiac Sagittarius and the Chinese zodiac Snake for this date.
Holiday Records
No holidays recorded on this date.
Date Information
Day
Saturday
Day of year
347 / 365
Week number
50
Days remaining
18
Chinese Calendar
Lunar Date
十月廿四
Year of the Snake · 乙巳 Yǐ Sì
Year pillar 年柱
乙巳
Yǐ Sì
Month pillar 月柱
戊子
Wù Zǐ
Day pillar 日柱
丙辰
Bǐng Chén
Day officer 建除十二神
定 Dìng · Stable Day
Current solar term 節氣
大雪 Dàxuě
Major Snow · 7 Dec 05:01 MYT
Next solar term
冬至 Dōngzhì
Winter Solstice · 21 Dec 23:00 MYT
Moon Phase
Over Singapore
Last Quarter
42% illuminated · Day 22.9 of 29.5
Moonrise
01:37 MYT
Moonset
13:59 MYT
Western Zodiac
Sagittarius
22 November - 21 December
Element
Fire
Quality
Mutable
Ruling planet
Jupiter
Chinese Zodiac
Snake
Zodiac of Year 2025
Element
Wood
Frequently Asked Questions
What information does this page show?
The day detail page lists every Singapore public holiday recorded on this date, the day position within the calendar year, and the Western zodiac sign plus Chinese zodiac (shio) for the date.
How is the Chinese lunar date on this page computed?
The Chinese lunar date follows standard astronomical rules. A new lunar month begins on the day containing the astronomical new moon as seen from the 120°E meridian (China Standard Time, UTC+8). Leap months are inserted when a lunar year contains 13 lunations without a zhongqi (major solar term). The day pillar and sexagenary year pillar use the traditional ganzhi cycle. This calculation matches the official reference used for Chinese New Year and lunar festivals in Singapore.
How is the moon phase information computed?
The moon's illumination percentage, lunar age (0 to 29.5 days), and the four principal phases (new moon, first quarter, full moon, last quarter) are calculated using standard astronomical algorithms and shown in Singapore Time (SGT, UTC+8). Moonrise and moonset times are computed for Singapore's latitude and longitude. Values are typically accurate to within a few minutes of published ephemerides.
How is the Chinese zodiac (shio) calculated here?
The shio is computed from the Gregorian year with a simple formula and is NOT adjusted for Chinese New Year, which falls between 21 January and 20 February. For dates before Chinese New Year, the shio technically still belongs to the previous zodiac year.
What is the difference between zodiac and shio?
Western zodiac divides the solar year into 12 star signs based on your date of birth, while shio (Chinese zodiac) divides a 12-year cycle into animal signs. Zodiac changes each month, shio changes each year.