Time and Seasons

The tracking of time and seasons on Starhelm dates back from the time of Haven, which is why most calendars look similar, but with some differences. The Human calendar is the most widely accepted but it has been adapted for general use. The references to specific Human gods have been removed and replaced with colloquial names.
Because The Three Pillars create with balance in mind, the cycle of the moon makes it very easy to measure time. A full cycle of the moon takes ten days, which allows three cycles of the moon to take place during a month, with three months during a season. During the solstice and equinox, the full moon lasts a full day longer making it three days rather than two. Even if some races don’t use a calendar most will use the moon to mark their passage of time.

Day and Night

In the majority of Starhelm the days are relatively the same, with the northern regions having shorter days in the winter and longer days in the summer, while the southern regions even out a bit. Given that, there is not a large range between the north and south, with maybe a couple of hours difference between daylight and nighttime.
The rising and setting of the sun typically marks the beginning and end of a day but different races, regions, or organizations may have unique rules for when the day and night start. The Merchant Guilds of Avandar may start early to make as much money as possible but the Rogue Guilds start later and make their time in the evening count as much as possible.

Hours of the Day

The Aerithian day is made up of 24 hours of 60 minutes, as is standard in most worlds. A week is made up of 5 days, and there are 6 weeks in a month. There are few common folk who need to worry about hours or minutes. They typically go by rough times like before sunset, or after high noon, or bedtime. Those in the cities may have more cause or need, or opportunity to measure on a smaller scale. Gnome cities like Hollow's Point or Stonebridge  have mechanized clocks that measure time for the whole town. They both have watchmakers but not very many people can afford them. Priests of Parfin will never have a traveling timepiece as they are adamant that the only way to understand the passing of time is to walk through time.
Essillion has a large clock tower that was gifted to them by the Gnomes of Hollow’s Point and it is always kept running smoothly and in good repair. The citizens of Essillion appreciate their monument and people are often seen gathering around it, meeting by it, or marveling at it.

Calendar

The most common calendar used on Starhelm is the Alucaran Calendar. It is a Human calendar based on the Haven Calendar but was changed after The Fractioning to include each of the Twelve Shards of Alucar. Each month has 30 days and there is a day included for each of the Solstices and Equinoxes and a single day of mourning that are not included as part of the months. The day after the last day of Bruges and before the first day of Curceon is marked as the Day of Mourning. This represents the rebirth of the world and also each coming year. It was included in the calendar as a way of recognizing the devastation of the Fractioning, though it is not technically the anniversary of The Fractioning. In addition, it marks the day the Three Pillars created the Founder races.
Other races use different calendars for marking the passing of time, but they are regional. The expansive nature of Humans and the fact that they exist on two ends of the continent have made the Alucaran Calendar popular and is in widespread use. Merchants and officials like the standard nature of it and the cities of Avandar and Essillion run very efficiently using the standardized method of the calendar.
On the Day of Mourning one is expected to be somber and reflective. No business is officially conducted, no contracts signed on that day are valid, and no declarations of war are recognized. Typically, the Humans and their allies following this calendar respect that day, but other races may heed it no mind. The Day of Mourning is always marked by a Golden Moon.
The solstice and equinox festivals are widely held across the continent and it is at these events that bonds of friendship and trade are born, renewed, or declared dead. Much celebration is had and many villages and cities, of many races look forward to those festivals. While they are not the only festivals, they are the widest spread and most celebrated.

Marking the Years

While different races may mark their years from different standpoints, there are certain accepted points in the Aerithian timeline that are shared amongst all races. The first and foremost is the emergence of Zayphos, the first being to enter the world through the Womb of Humanity. The second, is the Ascension, when the Dragon Lords became tethered to the Tree of Magic, and left Haven, reforming it into its current shape of Aerith. The most recent is The Fractioning of Alucar, which caused the shaping and reforming of the continent of Starhelm.
The common folk, or short-lived races, like Humans, Goblinkind, Grippli, or Krysin do not normally concern themselves with anything longer than their father or grandfather, but longer-lived races like Dwarves, Elves and Dragonkin may remember, or have had first-hand accounts passed down from their families who witnessed or were around when major events transpired. Their calendars are far more extensive than the Human calendar and go back much further than 1000 years ago, which is when the Alucaran Calendar began.
The diverse and expanding nature of Humans has fostered a common acceptance of current dating practices so even if a race uses a different calendar they will understand and speak to others who use the Alucaran Calendar in that manner. The current date is 1000 PF (post Fractioning) and major celebrations are planned for this year in Essillion and Avandar commemorating the first millennium since the Fractioning.