TO_START_OF_DAY

Rounds down a date with time (timestamp/datetime) to the start of the day.

Syntax

TO_START_OF_DAY( <expr> )

Arguments

Arguments	Description
<expr>	timestamp

Return Type

TIMESTAMP, returns date in “YYYY-MM-DD hh:mm:ss.ffffff” format.

Examples

SELECT
  to_start_of_day('2023-11-12 09:38:18.165575')

┌───────────────────────────────────────────────┐
│ to_start_of_day('2023-11-12 09:38:18.165575') │
│                   Timestamp                   │
├───────────────────────────────────────────────┤
│ 2023-11-12 00:00:00                           │
└───────────────────────────────────────────────┘