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ntfy/docs/sprig/date.md
2025-07-07 22:23:32 -06:00

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# Date Functions
## now
The current date/time. Use this in conjunction with other date functions.
## ago
The `ago` function returns duration from time.Now in seconds resolution.
```
ago .CreatedAt
```
returns in `time.Duration` String() format
```
2h34m7s
```
## date
The `date` function formats a date.
Format the date to YEAR-MONTH-DAY:
```
now | date "2006-01-02"
```
Date formatting in Go is a [little bit different](https://pauladamsmith.com/blog/2011/05/go_time.html).
In short, take this as the base date:
```
Mon Jan 2 15:04:05 MST 2006
```
Write it in the format you want. Above, `2006-01-02` is the same date, but
in the format we want.
## dateInZone
Same as `date`, but with a timezone.
```
dateInZone "2006-01-02" (now) "UTC"
```
## duration
Formats a given amount of seconds as a `time.Duration`.
This returns 1m35s
```
duration "95"
```
## durationRound
Rounds a given duration to the most significant unit. Strings and `time.Duration`
gets parsed as a duration, while a `time.Time` is calculated as the duration since.
This return 2h
```
durationRound "2h10m5s"
```
This returns 3mo
```
durationRound "2400h10m5s"
```
## unixEpoch
Returns the seconds since the unix epoch for a `time.Time`.
```
now | unixEpoch
```
## dateModify, mustDateModify
The `dateModify` takes a modification and a date and returns the timestamp.
Subtract an hour and thirty minutes from the current time:
```
now | date_modify "-1.5h"
```
If the modification format is wrong `dateModify` will return the date unmodified. `mustDateModify` will return an error otherwise.
## htmlDate
The `htmlDate` function formats a date for inserting into an HTML date picker
input field.
```
now | htmlDate
```
## htmlDateInZone
Same as htmlDate, but with a timezone.
```
htmlDateInZone (now) "UTC"
```
## toDate, mustToDate
`toDate` converts a string to a date. The first argument is the date layout and
the second the date string. If the string can't be convert it returns the zero
value.
`mustToDate` will return an error in case the string cannot be converted.
This is useful when you want to convert a string date to another format
(using pipe). The example below converts "2017-12-31" to "31/12/2017".
```
toDate "2006-01-02" "2017-12-31" | date "02/01/2006"
```