Terms of Sale

What you are buying: the 2027 moon calendar

One purchase of the 2027 moon calendar, for 9 US dollars plus any tax that applies where you are, gives you all of the following:

• A print-quality PDF calendar for the whole of 2027, computed for coordinates you choose and typeset for printing: a cover and twelve month pages, each showing moonrise, moonset, the phase and the illuminated percentage for every day, in the time zone you chose.
• The same calendar in an astrophotography edition, which adds each night's moonless dark window and the month's galactic core visibility. Both editions are included; you may download either or both.
• A calendar feed you can subscribe to in Apple Calendar, Google Calendar, Outlook or anything else that reads an iCalendar subscription, carrying the phases, supermoons and eclipses of 2027.
• The right to regenerate all of the above for a different location, as many times as you like, until 1 February 2028.

It is a digital product. Nothing is shipped, and no physical calendar is included. You print it yourself if you want it on paper.

Your Eclipse Day

One purchase of Your Eclipse Day, for 9 US dollars plus any tax that applies where you are, gives you all of the following:

• A printable PDF plan for the total solar eclipse of 2 August 2027, computed for coordinates you choose: the verdict for that spot, every contact time to the second with the Sun's altitude at each, a minute-by-minute plan for the morning, the shadow's direction and speed, your margin to the edge of the path, the nearest computed towns and the eye-safety rules.
• A one-page field card: the same verdict, contact times and safety rule in large type, made to be printed and carried.
• A calendar file (.ics) whose events carry alarms for the moments that matter, timed for the same coordinates.
• The right to regenerate all three for different coordinates, as many times as you like, until 1 October 2027.

It is a digital product about one fixed event. It stops being sold after 2 August 2027, and downloads remain available until 1 October 2027. If the coordinates you choose see only a partial eclipse, or none, the document states that honestly rather than inventing a totality; the free preview on the product page gives the same verdict before you pay. Everything under Delivery, Refunds, What you may do with it, and Accuracy below applies to it the same way it applies to the calendar, with two substitutions: where Delivery mentions 1 February 2028, the date for this product is 1 October 2027, and this product has no feed address.

The Moon That Night

One purchase of The Moon That Night, for 9 US dollars plus any tax that applies where you are, gives you all of the following:

• A print-resolution keepsake sheet (US Letter portrait PDF) of the Moon exactly as it appeared from the place you chose, at the clock time you chose, on the night you chose, any date from 1700 to 2200: the NASA Lunar Reconnaissance Orbiter photograph shaded to the computed phase, above a typeset record of the illumination, the Moon's age and distance, that night's moonrise and moonset, the traditional full moon name where one applies, any lunar eclipse that darkened it, and the computation conventions stated on the sheet.
• The right to regenerate the sheet with a different place or clock time, as many times as you like, for one year from purchase. The date itself is fixed: it is the night you bought.

The Occasion Edition of the same sheet, at 19 US dollars once, adds an occasion heading, a dedication line in your own words (set in Latin type; emoji and other scripts are removed at typesetting), a choice of four typeset themes, and print masters in four sizes: US Letter, 8x10, 11x14 and A4. Both moon sheets also come as an 8x10 JPEG at 300 dots per inch, drawn in your own browser from the night you bought, for photo counters that print from images rather than PDFs. Everything else about it, including the one-year regeneration right and the fixed date, is identical to the 9 dollar sheet.

It is a digital product. Nothing is shipped; you print it yourself if you want it on paper. The free on-page render and the free share card are not part of the purchase and stay free. Everything under Delivery, Refunds, What you may do with it, and Accuracy below applies to it the same way it applies to the calendar, with two substitutions: where Delivery mentions 1 February 2028, the date for this product is one year from the day you bought it, and this product has no feed address.

The widget license

Not on sale at the moment. The embeddable widgets are free for any website, personal or commercial, with no account, no API key and no usage limit, and that is the whole offer today. A per-domain license that removes the CycleCalcs mark exists and works, but it is not being sold while the widgets go out free; if that changes, these terms will say so before anything is charged.

If you hold a license key from earlier, it keeps working exactly as it did: it is verified by arithmetic against its own signature and expiry, and nothing about taking the license off sale touches a key already issued. It covers the domain it names and every subdomain under it, until the date it carries, and when that date passes the widget does not break: it falls back to the free tier and the CycleCalcs mark comes back.

Who you are buying from

Payment is taken by Stripe on a page Stripe hosts, and Stripe is the merchant of record for the sale. Stripe is the seller on the transaction: it takes the payment, calculates and remits any sales tax, VAT or GST due where you are, issues your receipt, and handles refunds and chargebacks. Your card details are entered on Stripe's page and are never seen by this site.

CycleCalcs LLC, a Virginia limited liability company, makes and supplies the product itself and is who you deal with about the calendar, its contents and its delivery.

Delivery and access

Delivery is immediate and electronic. When your payment completes you are returned to a page holding what you bought: your downloads and your feed address. There is no account to create and no password to remember: the address of that page is your access, so bookmark it. It brings you back to your calendar any time until 1 February 2028.

A copy of the same thing is emailed to the address you paid with, so a lost bookmark is not a lost purchase.

Some payment methods settle through a bank rather than instantly. If you used one, that page will say so and tell you to return to it once the payment clears, which is typically a few days.

Treat your bookmark like a receipt: anyone who has it can download your calendar. If you lose it, email us from the address you paid with and we will send it back to you. The payment record is enough.

Refunds

If what you bought is not what you wanted, email info@cyclecalcs.com within 30 days of buying it and we will refund you in full. You do not have to give a reason, and there is nothing to return. This applies to everything sold here: the calendar, the eclipse day plan, The Moon That Night at nine dollars and its Occasion Edition at nineteen. These are small purchases and we would rather you had your money back than felt stuck with one.

Stripe may also issue a refund directly in some circumstances, and applies any consumer protection rules that apply where you live, including statutory cancellation periods. Those rights are yours regardless of anything above.

What you may do with it

The calendar is for you. Print it as often as you like, for as many walls as you like, at home or at work. Give a printed copy to somebody.

What is not included is the right to redistribute the file itself or to resell it: do not post the PDF for download, share your access link publicly, or sell copies.

The astronomical values printed on the calendar are not owned by anybody. Under the site license, every computed astronomical value CycleCalcs publishes is dedicated to the public domain, so the times and phases themselves are free for you to use for anything, including commercially. The reservation above is about the typeset document and its design, not about the numbers in it.

Place names and coordinates come from GeoNames (geonames.org) under CC BY 4.0, and the credit line printed on the calendar, on both Eclipse Day documents, and on the Moon That Night sheet, satisfies that condition. Leave it in place if you redistribute anything derived from it.

Accuracy

Every time in these products is computed for the coordinates you chose by the same engine behind every tool on this site (the method is public), and each document prints the time zone it used. On the moon calendar, rise and set times are given to the minute and are typically accurate to about that.

Your Eclipse Day is computed to a finer grain and is held to a different statement: contact times are given to the second, at sea level, for the mean lunar limb. The Moon's edge is mountainous, so a limb-corrected prediction moves the start and end of totality by a second or two either way; standing a few kilometres from the coordinates you gave moves them by more, which is why the document also computes how far you are from the edge of the path. Near that edge the limit's own position carries a kilometer or two of uncertainty, and the document says so where it applies.

The widgets run the same engine. The iframe widgets compute it in the visitor's browser; the in-page moon widget reads it from the same public API. Everything in this section applies to both.

They are geometric predictions of where the Moon is, not promises about what you will see. Terrain, weather, buildings and unusual atmospheric refraction all affect when the Moon actually appears over your horizon, and the calendar assumes a sea-level horizon. Do not rely on it where being wrong by a few minutes would be dangerous or costly: it is sold for interest and planning, and it comes with no warranty beyond the refund above.

Changes and availability

The 2027 calendar is sold until the end of 2027 and remains regenerable by anyone who bought it until 1 February 2028. Prices and these terms may change for future purchases; the terms that apply to you are the ones published when you bought.

The widget license is not currently sold. Every key already issued keeps working until it expires, and the widgets are free either way. The widget.js and embed.js files themselves are frozen public contracts: a breaking change ships as a new file beside them, never as an edit to the one your pages already load.

The free preview, the free widgets, the free calculators, and the API's free tier are not affected by any of this and stay free.

Contact

CycleCalcs LLC, Virginia, United States. Email info@cyclecalcs.com for anything about an order, a refund, a license key, or the calendar itself. These terms are governed by the law of the Commonwealth of Virginia.

Last updated: 27 August 2026.