This program wraps the libc localtime() and gmtime() functions to output the eternal September 1993 date. The epoch month is configurable.
Also supported is the never ending COVID 19 date.
Github: https://github.com/df7cb/sdate
An API-only service that allows you to determine whether Mercury is in retrograde for a given date.
Seems essential to me.
Mercury in retrograde dates for the next decade.
2021
January 30 – February 20 in air-sign Aquarius
May 29 – June 22 in air-sign Gemini
September 27 – October 18 in air-sign Libra
2022
January 14 – February 3 starts in air sign Aquarius, ends in earth-sign Capricorn
May 10 – June 2 starts in air sign Gemini, ends in earth-sign Taurus
September 9 – October 2 starts in air-sign Libra, ends in earth-sign
December 29 – January 18 in earth-sign Capricorn
2023
See above, Dec 29, 2022 – Jan 18, 2023- goes direct in earth sign Capricorn
April 21 – May 14 in earth sign Taurus
August 23 – September 15 in earth sign Virgo
December 13, 2023 – January 1, 2024 in fire-sign Sagittarius
2024
See above, January 1, 2024 goes direct in fire-sign Sagittarius
April 1- April 25 in fire-sign Aries
August 4 – August 28 in earth-sign and ends in fire-sign Leo
November 25 – December 15 in fire-sign Sagittarius
2025
March 14 – April 7 starts in fire-sign Aries, ends in water-sign Pisces
July 17 – August 11 in fire-sign Leo
November 9 – November 29 starts in fire-sign Sagittarius, ends in water-sign Scorpio
2026
February 25 – March 20 in water-sign Pisces
June 29 – July 23 in water-sign Cancer
October 24 – November 13 in water-sign Scorpio
2027
February 9 – March 3 starts in water-sign Pisces, ends in air-sign Aquarius
June 10 – July 4 starts in water-sign Cancer, ends in air-sign Gemini
October 7 – October 28 starts in water-sign Scorpio, ends in air-sign Libra
2028
January 24 – February 14 in air-sign Aquarius
May 21 – June 13 in air-sign Gemini
September 19 – October 11 in air-sign Libra
2029
January 7 – January 27 starts in air-sign Aquarius, ends in earth-sign Capricorn
May 1 – May 25 in earth-sign Taurus
September 2 – September 24 starts in air-sign Libra, ends in earth-sign Virgo
December 21 – January 10, 2030 in earth-sign Capricorn
2030
See above, December 21, 2029 – January 10, 2030 in earth-sign Capricorn
April 12 – May 6 starts in earth-sign Taurus, ends in fire-sign Aries
August 15 – September 8 in earth-sign Virgo
December 5 – December 25 starts in earth-sign Capricorn, ends in fire-sign Sagittarius
python module that makes handling dates and times significantly easier. Get, parse, and convert datetimes in various forms, such as time_t, natural language ("23 hours from now," "last year"), and various RFC formats. Can also do timezone and arbitrary time interval algebra. Cross-platform.