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Feature tours · Dates and time

Dates that check themselves and do the math

One form shows what dates can do in FasterOS: calendars that offer only the days that make sense, one date or several in a field, and date math worked out the moment a date changes: nights, business days, weekdays, reminders and ages. All without code.

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This form is one example of what you can build with FasterOS. The same fields, settings and functions build anything you can imagine for your business.

Only the days that make sense

Each date field sets which days can be picked: from the past, from the future, and today. Days that can’t be picked are greyed out, so a check-in can’t be in the past and a date of birth can’t be in the future.

One date or several

How many Dates sets how many a field takes. Check-in and check-out take one each, and picking again changes it; meeting days takes up to three.

Date math, done for you

Date functions work on any date field and update the moment a date changes. From a check-in of Friday, November 20 and a check-out of Tuesday, November 24:

Picked from a list

Each date field has a change rule with date functions picked from a list. Nothing is typed as code.

Today and now, formatted

Form logic runs as the form opens and fills in today’s date and the time now. A Result field shows a date as a Short date, a Long date or a Time, in each visitor’s own format.

Try it now

This is the tour's form, live. Pick a check-in and a check-out date, and watch the nights, business days and reminder appear. Nothing you enter is saved.

Date fields Pick dates from a calendar, limited to the past, the future, or a number of dates. Check-in Check-out Date of birth Meeting days (up to 3) Date functions Each updates as soon as a date it uses changes. Nights Business days Check-out day Reminder (a week before) End of check-in month Check-in, written out Age Formats The same date or time, shown different ways. Today (Long date) October 16, 2026 Now (Time) 5:01 PM

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Functions used in this tour

Picked from a list in Field Logic. Each one works on any date field, or on a date typed as text.

Date & Time

Build anything you can imagine

Dates and time are one building block. Create a free account and build your own forms the same way, with no code.

Create a free accountWatch the presentation This tour is also an automated test: 14 checks, run against the live product.

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Text that tidies itself, choices with limits, fields that appear only when they apply, and switches.

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Field logic and events

Logic that runs on Enter, change or click, If blocks that decide, and form logic as the form opens.

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AI-powered interfaces

Fields that write their own text, answers from your own data, images described and text read aloud.

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Object arrays

Group fields into an object and repeat it: attendees, sessions, line items, each titled by name.

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