Date Time Input

DateTimeInput combines a calendar and clock picker. It returns the full timestamp the user chose.

Signature

dt := ui.DateTimeInput(label string, opts ...datetimeinput.Option) *time.Time

dt is nil until the user selects a value.

Helper	Purpose	Default
`datetimeinput.WithPlaceholder("YYYY‑MM‑DD HH:mm")`	Placeholder when empty	`""`
`datetimeinput.WithDefaultValue(time.Now())`	Pre‑fill on first render	nil
`datetimeinput.WithRequired(true)`	Require a value inside a `Form`	`false`
`datetimeinput.WithDisabled(true)`	Read‑only field	`false`
`datetimeinput.WithFormat("MM/DD/YYYY HH:mm")`	Display / parse format (Moment‑style tokens)	`"YYYY/MM/DD HH:MM:SS"`
`datetimeinput.WithMaxValue(t)`	Latest selectable timestamp	nil
`datetimeinput.WithMinValue(t)`	Earliest selectable timestamp	nil
`datetimeinput.WithLocation(loc)`	Time‑zone for parsing & formatting	`time.Local`

State type – stored as time.Time. Changing WithFormat only affects rendering, not stored value.
Validation – Required, Min/MaxValue enforce constraints client‑side before rerun.
Time‑zone – all conversions use the provided Location; this matters when comparing dates across zones.

ev := ui.DateTimeInput("Event time")
if ev != nil {
    fmt.Println("selected:", ev.Format(time.RFC3339))
}

ui.DateTimeInput("Start",
    datetimeinput.WithPlaceholder("MM/DD/YYYY HH:mm"),
    datetimeinput.WithFormat("MM/DD/YYYY HH:mm"),
)

now := time.Now()
ui.DateTimeInput("Deadline",
    datetimeinput.WithMinValue(now),
    datetimeinput.WithMaxValue(now.Add(24*time.Hour)),
)

ui.DateTimeInput("Created",
    datetimeinput.WithDefaultValue(time.Now()),
    datetimeinput.WithDisabled(true),
)