Difference
This indicates the difference between two date-time in the specified unit.
To get the difference in milliseconds, use dayjs#diff.
const date1 = dayjs('2019-01-25')
const date2 = dayjs('2018-06-05')
date1.diff(date2) // 20214000000 default milliseconds
To get the difference in another unit of measurement, pass that measurement as the second argument.
const date1 = dayjs('2019-01-25')
date1.diff('2018-06-05', 'month') // 7
By default, dayjs#diff will truncate the result to zero decimal places, returning an integer. If you want a floating point number, pass true as the third argument.
const date1 = dayjs('2019-01-25')
date1.diff('2018-06-05', 'month', true) // 7.645161290322581
List of all available units
Units are case insensitive, and support plural and short forms. Note, short forms are case sensitive.
| Unit | Shorthand | Description |
|---|---|---|
day | d | Day of Week (Sunday as 0, Saturday as 6) |
week | w | Week of Year |
quarter | Q | Quarter |
month | M | Month (January as 0, December as 11) |
year | y | Year |
hour | h | Hour |
minute | m | Minute |
second | s | Second |
millisecond | ms | Millisecond |