c2n/web-componentsv1.0.26
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Duration Input

A text field for an amount of time: reads 1h 30m, 90m, 1.5h or 1:30 and stores seconds.

Attributes

NameTypeDefaultDescription
valuenumber | nullnullThe duration in seconds, or null for none. In markup, a number of seconds (value="5400").
namestring—Form field name. The form receives the duration in seconds.
unitDurationUnitmThe unit of a bare number such as 90: w, d, h, m (the default) or s. Arrow Up/Down step by it when there is no step.
formatDurationFormatshortHow the duration is written once the field is left: short (1h 30m), long (1 hour, 30 minutes) or clock (1:30).
largest-unitDurationUnitdThe largest unit written: with h, two days read 48h. Days by default.
smallest-unitDurationUnitsThe smallest unit written; what is left below it is rounded. Seconds by default.
day-hoursnumber24Hours in a day, d. Time tracking often uses 8.
week-daysnumber7Days in a week, w. Time tracking often uses 5.
minnumber | undefined—The shortest valid duration, in seconds.
maxnumber | undefined—The longest valid duration, in seconds.
stepnumber | undefined—Seconds the value is rounded to when the field is left (900 rounds to 15 minutes), and the amount Arrow Up/Down add.
placeholderstring—Text shown while the field is empty. Defaults to the translatable e.g. 1h 30m.
requiredbooleanfalseRequires a duration before the form can be submitted.
readonlybooleanfalsePrevents editing while keeping the value in form submission.
disabledbooleanfalsePrevents interaction and excludes the value from form submission.
errorbooleanfalseApplies the visual error state and sets aria-invalid, showing error-text.
helpstring—Helper text shown below the field.
error-textstring—Message shown below the field while error is set.
aria-labelstring | nullnullAccessible name forwarded to the text field.

Slots

NameDescription
iconReplaces the clock icon before the text.

Events

NameTypeDescription
inputInputEventRe-dispatched while typing, and when Arrow Up/Down changes the value.
changeEventRe-dispatched when the edited text is committed, after the value is rounded to step, and when Arrow Up/Down changes the value.

CSS parts

Shadow DOM styling hooks used with ::part(name). Prefer CSS custom properties when they cover the change.

NameDescription
iconThe box around the clock icon.
previewThe preview after the text while typing (= 1 hour, 30 minutes).
supporting-textThe help text or error message below the field.

CSS custom properties

Grouped by semantic target and state from --c2-<component>__<target>__<state>--<property>. Click a group to collapse it; click a name to copy it.

NameTypeDefaultDescription
c2-duration-input
--c2-duration-input--min-heightpixel36pxThe field's height.
--c2-duration-input--borderborder1px solid #bcbcc6The field's border.
--c2-duration-input--border-radiusborder-radius6pxThe field's corner radius.
--c2-duration-input--colorcolor#18181bThe text colour.
--c2-duration-input--backgroundcolor#ffffffThe field's background.
--c2-duration-input--font-sizefont-size14pxThe text size.
--c2-duration-input--font-familyfont-familyinheritThe text font.
--c2-duration-input--line-heightpixel20pxThe text line height.
c2-duration-input > value
--c2-duration-input__value--paddingpadding6px 12px 6px 10pxSpace inside the field.
--c2-duration-input__value--gappixel8pxSpace between the icon, the text and the preview.
c2-duration-input > placeholder
--c2-duration-input__placeholder--colorcolor#71717aThe placeholder colour.
c2-duration-input > icon
--c2-duration-input__icon--colorcolor#71717aThe clock icon's colour.
--c2-duration-input__icon--sizepixel16pxThe clock icon's size.
c2-duration-input > preview
--c2-duration-input__preview--colorcolor#71717aThe colour of the preview after the text.
--c2-duration-input__preview--font-sizefont-size12pxThe size of the preview after the text.
c2-duration-input > hover
--c2-duration-input__hover--borderborder1px solid #a1a1aaThe border on hover.
c2-duration-input > focus
--c2-duration-input__focus--borderborder1px solid #0265dcThe border while focused.
--c2-duration-input__focus--outlineoutlinenoneThe outline while focused.
--c2-duration-input__focus--outline-offsetpixel0pxThe outline offset while focused.
c2-duration-input > error
--c2-duration-input__error--borderborder1px solid #dc2626The border while invalid.
c2-duration-input > error > focus
--c2-duration-input__error__focus--outlineoutlinenoneThe outline while invalid and focused.
c2-duration-input > read-only
--c2-duration-input__read-only--backgroundcolor#fafafaThe background while read-only.
c2-duration-input > disabled
--c2-duration-input__disabled--opacityopacity0.38The opacity while disabled.
c2-duration-input > supporting-text
--c2-duration-input__supporting-text--gappixel4pxSpace between the field and its supporting text.
--c2-duration-input__supporting-text--font-sizefont-size12pxThe supporting text's size.
--c2-duration-input__supporting-text--line-heightpixel16pxThe supporting text's line height.
--c2-duration-input__supporting-text--colorcolor#71717aThe help text's colour.
c2-duration-input > supporting-text > error
--c2-duration-input__supporting-text__error--colorcolor#dc2626The error message's colour.

Text and languages

The text the component shows, in English. It shows another language when the app adds one with addTranslations, under duration-input, and the nearest lang asks for it; any message not translated stays in English. {0}, {1}… stand for the values a message carries. Languages guide.

KeyEnglishValues
placeholdere.g. 1h 30m—
preview= {0}{0} duration
badInputEnter a duration like 1h 30m—
valueMissingEnter a duration—
rangeUnderflowEnter {0} or more{0} min
rangeOverflowEnter {0} or less{0} max
weekWordsw wk wks week weeks—
dayWordsd day days—
hourWordsh hr hrs hour hours—
minuteWordsm min mins minute minutes—
secondWordss sec secs second seconds—
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counter.InputsTheme SelectColour-theme switcher: click to step to the next mode, hover for the full menu.InputsTime InputForm-associated time-of-day input with a scroll-wheel picker, step and range constraints, helper text and error states.InputsTime Range PickerDashboard time range control: searchable quick ranges, an absolute range typed or picked on a calendar, time zone, shift and zoom, and auto-refresh.InputsTime Slot PickerPick a free time from someone's calendar: a row of days, then that day's times grouped into morning, afternoon and evening.InputsTimelineA vertical sequence of dated events on a connected rail: order history, activity feeds, changelogs.Data displayToastNotification cards and a manager for stacked, queued notifications with independent lifetimes.FeedbackTodo ListA to-do list with the feel of paper: hand-drawn ticks, notes, highlighters, swipe and drag, and a remembered look.PlanningToggletipA small ⓘ button that opens a help bubble on click or tap; the bubble can hold links and is announced to screen readers.FeedbackTooltipContextual hint shown when its target is hovered or focused, rendered in the top layer.FeedbackTourA guided product tour that spotlights one element at a time and explains it in a panel beside it.FeedbackTrace WaterfallShow the spans of a distributed trace as a tree, each with a duration bar on one shared time axis.Data displayTranscriptSpeaker-labelled, timestamped segments synced to playback: click to seek, the word playing marked, search built in.Data displayTreeHierarchical tree view with expansion, selection, checkboxes and lazy loading.Data displayTree SelectA dropdown for picking one or several rows from a hierarchy, with checkboxes, search and a form value.InputsTreemap chartA whole split into nested rectangles, each sized by its value: market maps, budgets and disk usage.ChartTruncateClamps text to a number of lines, with an optional Show more button.Data displayUploadDrag-and-drop file selection with validation, upload progress, retry, cancellation, and attachment results.InputsVideo GridLays out the tiles of a call as a grid, a spotlight or a sidebar, every tile as large as the space allows.LayoutVideo PlayerThemed controls over a real video: chapters on the seek bar, a thumbnail while scrubbing, captions, speed, picture-in-picture and full screen.Data displayVideo TileOne participant of a call: their video or avatar, with their name, a live microphone meter and status badges.Data displayView OptionsThe Display popover of a collection: layout, grouping, ordering on several levels, Show switches and visible properties, reported as one plain value.InputsVirtual ListWindowed list with built-in search, sorting, selection and an async data source.Data displayVisually HiddenText for screen readers only: kept in the accessibility tree, drawn nowhere, optionally shown while it holds focus.LayoutWaterfall chartA running total bridged by the steps that move it, where one row is one step and totals mark where the bridge lands.ChartWeek PlannerWeekly schedule with time blocks: a typical week with optional odd and even weeks, or a dated week the user edits.PlanningWheel PickeriOS-style scroll wheels to pick a time, a height, a weight or any value from a short list, by swipe, scroll, click or keys.InputsWorking IndicatorA live "work in progress" line: animated mark, shimmering label, trailing dots and elapsed time.FeedbackFeather Icons287 open-source Feather icons, one web component each.IconsMat Icon2,234 Material Icons ligatures rendered through a single element.IconsPhosphor Icons1,512 flexible icons in six weights, one web component each.IconsSymbols157 themeable spot illustrations for empty states, status panels, onboarding and error pages.IconsTask icons191 duotone icons for to-do items: work, home, health, sport, learning, food, money, travel and more.IconsThemingTheme every c2n component from a handful of design tokens with @c2n/theme, or reach for any component variable directly.GuideLanguagesComponents show their text in English; add your app’s languages as one JSON object, picked by the nearest lang.GuideFrameworksUse the components from React, Vue, Angular, Svelte, Lit or plain HTML — typed events, generated template types, and the one piece of configuration each framework needs.GuideUsing c2n in an applicationThe workflow behind every c2n app: load the theme once, use c2-* tags directly, and turn every repeated pattern into a small variant or composed component.GuideAI toolsGive Claude Code, Codex, Google Antigravity or GitHub Copilot the c2n skill, live component APIs, examples and application conventions.GuideNo components match.
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