Calendars are more than just tools for tracking time—they reflect the cultural, astronomical, and historical evolution of civilizations. While the Gregorian calendar is widely used today, its origins may have deeper connections to the Vedic Hindu calendar system than previously acknowledged. This article explores the striking similarities between the two, particularly in the naming and numbering of months.
The Hindu Calendar: A Cosmic Timekeeping System
The Vikram Samvat calendar, one of the oldest Hindu calendars, begins with Chaitra, aligning with the March-April period in the Gregorian system. Unlike the Gregorian calendar, which is based on the solar cycle, the Hindu calendar incorporates both lunar and solar movements, making it highly precise in tracking celestial events.
Each Hindu month corresponds to the position of the Sun in a specific zodiac sign, which is where the Sanskrit naming convention comes into play. The months follow a logical sequence based on astronomical transitions, much like the original Roman calendar.
The Roman Calendar: A Shift from Its Original Structure
The Roman calendar, before its reform into the Julian and Gregorian systems, originally had ten months, starting from March. This explains why September (7th), October (8th), November (9th), and December (10th) retained numerical names despite their modern positions.
Interestingly, the Hindu calendar follows a similar structure:
September → Sapt + Amber (7th month, Sun in the 7th zodiac)
October → Ast + Amber (8th month, Sun in the 8th zodiac)
November → Nav + Amber (9th month, Sun in the 9th zodiac)
December → Dash + Amber (10th month, Sun in the 10th zodiac)
This linguistic parallel suggests that the Roman calendar may have been influenced by ancient Hindu astronomical traditions.
The Mystery of February: Was It Originally the Last Month?
One of the strongest pieces of evidence supporting this theory is the placement of February as the shortest month. If December were truly the last month, adjustments should have been made there. However, the fact that February carries the adjusted days suggests that it was originally the final month, aligning with the Hindu calendar’s Phalguna.

The Influence of Kings and Festivals on Month Names
Throughout history, calendars have undergone significant changes, often shaped by rulers, religious practices, and seasonal celebrations. The names of months in the Gregorian calendar reflect these influences, with several months renamed to honor kings or based on traditional festivals. Let’s explore how each month evolved:
January – Named after Janus, the Roman God of Beginnings
January is named after Janus, the Roman god of transitions, doors, and new beginnings. Janus was depicted with two faces—one looking toward the past and the other toward the future—symbolizing the transition into a new year.
February – Rooted in the Festival of Purification
February gets its name from Februa, an ancient Roman festival of purification and cleansing rituals held to welcome spring. This month was originally the last month of the Roman calendar, explaining why adjustments in days (leap year changes) occur here instead of in December.
March – Named after Mars, the God of War
March was originally the first month of the Roman calendar and was named after Mars, the Roman god of war. Since wars often resumed in spring after winter, March held special significance for military campaigns.
April – The Month of Blossoms
The name April is thought to come from the Latin word aperire, meaning “to open,” referring to blooming flowers and the arrival of spring. Another theory suggests it might have connections to Aphrodite, the Greek goddess of love.
May – Honoring Maia, the Goddess of Growth
May is named after Maia, a Greek goddess associated with fertility and growth. The month traditionally marked the time of planting crops and celebrating abundance.
June – Dedicated to Juno, the Goddess of Marriage
June is named after Juno, the Roman goddess of marriage and childbirth. The association with Juno is why June remains a popular month for weddings.
July – Originally Quintilis, Later Named After Julius Caesar
Originally, July was called Quintilis, meaning “fifth month” in Latin. After Julius Caesar’s calendar reforms, the month was renamed in his honor to acknowledge his contributions to timekeeping.
August – Sextilis, Renamed for Emperor Augustus
August was originally Sextilis (the sixth month) before Emperor Augustus renamed it to celebrate his military victories and political achievements. This is a crucial connection to the Hindu calendar, where months like Shashtha (sixth month) share similar numbering systems.
These changes illustrate how royalty, religion, and tradition shaped the evolution of month names, and some linguistic parallels between Latin and Sanskrit indicate potential influences from ancient Hindu timekeeping.
While the Gregorian calendar is widely accepted today, its origins may have deeper roots in ancient Hindu timekeeping. The similarities in month numbering, astronomical alignment, and linguistic connections suggest that the Roman calendar system may have drawn inspiration from Vedic traditions. Further research into historical exchanges between civilizations could shed more light on this fascinating connection.