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Round Down Hour from a Date Field

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Hello.

Looking for a formula that allows me to both convert to central time & round to nearest hour.

What I have
2022-11-11 4:01pm
2022-11-11 2:01pm
2022-11-11 12:02pm
2022-11-11 10:15am

Want
2022-11-11 4:00pm
2022-11-11 2:00pm
2022-11-11 12:00pm
2022-11-11 10:00am

TW Airtable Screen 01

1 Solution

Accepted Solutions

To truncate to the hour …

DATEADD(
  {time},
  -1 * MINUTE({time}),
  "minutes"
)

If your time has seconds, you may also needs to do the same pattern to subtract seconds.

Note that this is different from rounding to the nearest hour. 10:59 would turn into 10:00, not 11:00. If you want to round to the nearest hour, that is a different formula.

IF(
  MINUTE({time}) < 30,
  DATEADD(
    {time},
    -1 * MINUTE({time}),
    "minutes"
  ),
  DATEADD(
    {time},
    60 - MINUTE({time}),
    "minutes"
  )
)

As for showing the time in Central time, you can use DATETIME_FORMAT() along with SET_TIMEZONE().

See Solution in Thread

3 Replies 3

oops… For to adjust the Want to central time. If anything just need to add an hour.

To truncate to the hour …

DATEADD(
  {time},
  -1 * MINUTE({time}),
  "minutes"
)

If your time has seconds, you may also needs to do the same pattern to subtract seconds.

Note that this is different from rounding to the nearest hour. 10:59 would turn into 10:00, not 11:00. If you want to round to the nearest hour, that is a different formula.

IF(
  MINUTE({time}) < 30,
  DATEADD(
    {time},
    -1 * MINUTE({time}),
    "minutes"
  ),
  DATEADD(
    {time},
    60 - MINUTE({time}),
    "minutes"
  )
)

As for showing the time in Central time, you can use DATETIME_FORMAT() along with SET_TIMEZONE().

Worked. Absolutely part of the puzzle. Many Thank Yous.

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