Add
Returns a cloned Day.js object with a specified amount of time added.
const a = dayjs()
const b = a.add(7, 'day')
// a -> the original value and will not change
// b -> the manipulation result
Units are case insensitive, and support plural and short forms. Note, short forms are case sensitive.
List of all available units
| Unit | Shorthand | Description |
|---|---|---|
day | d | Day |
week | w | Week |
month | M | Month |
quarter | Q | Quarter (
dependent
QuarterOfYear
plugin
) |
year | y | Year |
hour | h | Hour |
minute | m | Minute |
second | s | Second |
millisecond | ms | Millisecond |
Alternatively, you can use durations to add to Day.js object.
result = dayjs().add(dayjs.duration({'days' : 1}))
When decimal values are passed for days and weeks, they are rounded to the nearest integer before adding.