Start of Time
Returns a cloned Day.js object and set it to the start of a unit of time.
dayjs().startOf('year')
Units are case insensitive, and support plural and short forms.
List of all available units
| Unit | Shorthand | Description |
|---|---|---|
year | y | January 1st, 00:00 this year |
quarter | Q | beginning of the current quarter, 1st day of months, 00:00 (
dependent
QuarterOfYear
plugin
) |
month | M | the first day of this month, 00:00 |
week | w | the first day of this week, 00:00 (locale aware) |
isoWeek | the first day of this week according to ISO 8601, 00:00 (
dependent
IsoWeek
plugin
) | |
date | D | 00:00 today |
day | d | 00:00 today |
hour | h | now, but with 0 mins, 0 secs, and 0 ms |
minute | m | now, but with 0 seconds and 0 milliseconds |
second | s | now, but with 0 milliseconds |