True Father began to speak about this calendar, changing its name to the "천력 / 天曆 / Heavenly Calendar" in 2010 when he also started to proclaim the firm settlement of the True Parents of Heaven, Earth and Humankind that signifies that True Parents (earthly) embodied the ideal of God (celestial).

This year we have the 13th intercalary month and we have the third month twice.  Therefore, Apr. 21, 2012 is the first day of the third month again.

The solar calendar depends on the position of the earth on its revolution around the sun, which takes 365 days to revolve. The lunar calendar is with the cycles of the moon phase, which takes 29.53 days every time. The solar calendar indicates the changes of weather, which are caused by different amounts of sunlight while the lunar calendar is connected to earthly things such as plant life, the oceans, and our human body. Therefore, it can be said that the former is celestial and the latter is earthly and both are important for human life.

One cycle of the solar calendar takes 365 days and the lunar calendar takes 354 days for 12 months (29.53 X 12), and therefore there are 11-day difference between the two. By having a 13th intercalary month in a year 7 times every 19 years, the lunar calendar can go in accordance with the solar calendar.  This is so-called the lunisolar calendar, which can indicate both the phases of the moon as well as the seasons of the solar year.  (China, Korea, and Japan used this until 19th to early 20th century.  The Islamic calendar is based purely the lunar calendar.)

(@lovintp in English) 이제 한국으로 참부모님께서 발걸음을 옮기십니다. 한국에서 참부모님모시고 뵙겠습니다~^^

今、韓国に真の御父母様が足取りを移動されます。 韓国で真の御父母様に侍って、お会いします～(日本語訳転載: K. Tanemori)

(@lovintp in English) True Parents are now on their way to Korea. We will attend True Parents again in Korea.

True Parents have called for 30,000 to assemble at the Cheongshim World Center by 7 pm, this evening, according to an emergency notice on the official Tongilgyo site. No other details are known at this time.

하나님과 참부모님의 사랑과 축복이 함께 하시기를 기원합니다.

참부모님 긴급지시로 청심평화월드센터에서 금일 아래와 같이 특별집회가 실시됩니다. 식구님께서는 정성을 다해 참석해 주시기 바랍니다.

-아래-

행사명: 천지인참부모님 특별집회

일시: 천기3년 천력 (윤)3월 1일(양 4.21) 토요일 오후 7시

장소: 청심평화월드센터

참석인원: 30,000명

韓国統一教>お知らせ より：

[緊急]天地人真の父母様特別集会のご案内

2012.04.21 10:15

神様と真の父母様の愛と祝福が共にあることをお祈りします。

真の父母様 の緊急指示で、清心平和ワールドセンターに今日下記のように特別な集会が行われます。シクグニムケソヌン真心を込めてご参加ください。

- 下 –

行事名：天地人真の父母様特別集会

日時：天3年天暦（ユン）3月1日（ヤン4.21）土曜日の午後7時

場所：清心平和ワールドセンター

参加人数：30,000人

A special Assembly by True Parents was held at the Cheong Shim Peace World Center on 3.1 H.C. (Apr. 21, 2012). Father gave the order to prepare the event while on the airplane traveling from Las Vegas back to Korea.  Despite the rainy weather, many members from all over Korea participated.  During the ceremony, Mother read the speech after Father spoke.

(@lovintp in English) 오늘 굿은 날씨에도 불구하고 참부모님의 명에따라 '천지인 참부모님특별집회' 에 참석하신 식구님들 여러분들께 진심으로 감사드립니다. 빗길입니다 가시는 길이 안전하시길 기도합니다.아주~

今日悪い天気にもかかわらず、真の父母様の命により「天地人真の父母特別集会」に参加された食口の皆さんへ心より感謝申し上げます。雨の道です。行く道が安全であることを祈ります。アジュ～ 　（日本語訳転載） (日本語訳転載: K. Tanemori)

A sincere "Thank you" to all Shikkunims who, despite the inclement weather, participated in the "Special Assembly of the True Parents of Heaven, Earth and Humankind" in accordance with True Parents' instruction. The roads are wet. We pray for your safety on your way home. Aju.

[From the Twitter account of International President Hyung Jin Nim and Yeon Ah Nim on April 21, 2012. Tongil Foundation]