MongoDB Connector 25.2
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# convert_date_time

Converts date and time formats. All date and time input is treated as local time unless it contains explicit time zone information.

The `InputFormatCSV` and `OutputFormat` arguments specify date and time formats, and accept the following values:

- `AUTNDATE`. 1 to a maximum of 10 digits. This format covers the epoch range (1 January 1970 to 19 January 2038) to a resolution of one second, and dates between 30 October 1093 BC and 26 October 3058 to a resolution of one minute.

- date formats that you specify using one or more of the following:

  `YY` | Year (2 digits). For example, 99, 00, 01 and so on.
  `YYYY` | Year (4 digits). For example, 1999, 2000, 2001 and so on.
  `#YY+` | Year (2 or 4 digits). If you provide 2 digits, then it uses the `YY` format. If you provide 4 digits, it uses the `YYYY` format. For example, it interprets `07` as `2007 AD` and `1007` as `1007 AD`.
  `#Y` | Year (1 to a maximum of 16 digits) and can be followed by `AD` or `BC`. An apostrophe (`'`) immediately before the year denotes a truncated year. For example, `2008`, `'97` (interpreted as `1997`), `97` (interpreted as `97 AD`), `'08` (interpreted as `2008`), `2008 AD` and `200 BC`. A truncated year with a BC identifier is invalid (`'08 BC`).
  `#FULLYEAR` | Year (1 to a maximum of 16 digits). For example `8`, `98`, `108`, `2008`, each of which is taken literally. The year is taken relative to the common EPOCH (0AD).
  `#ADBC` | Time Period. For example, `AD`, `CE`, `BC`, `BCE` or any predefined list of EPOCH indicators. Typically, the year specified using the above Year formats is interpreted as un-truncated and relative to the EPOCH. For example, 84 AD is interpreted as 1984 AD and 84 BC is interpreted as 84 BC. The only exception to this is when you use both `#YY+` and `#ADBC`. In this case, the format is interpreted as un-truncated even if the year was set to truncated by `#YY+`. For example, 99 AD is interpreted as the year 99 AD. OpenText recommends you use only `YY`, `YYYY` or `#FULLYEAR` with `#ADBC`.
  `LONGMONTH` | A long month, for example, `January`, `February` and so on.
  `SHORTMONTH` | A short month, for example, `Jan`, `Feb` and so on.
  `MM` | Month (2 digits). For example,`01`, `10`, `12` and so on.
  `M+` | Month (1 or 2 digits). For example, `1`,`2`,`3`,`10` and so on.
  `DD` | Day (2 digits). For example, `01`, `02`, `03`, `12`, `23` and so on.
  `D+` | Day (1 or 2 digits). For example, `1`, `2`, `12`, `13`, `31` and so on.
  `LONGDAY` | 2 digits with a postfix. For example, `1st`, `2nd` and so on.
  `HH` | Hour (2 digits). For example, `01`, `12`, `13` and so on.
  `H+` | Hour (1 or 2 digits).
  `NN` | Minute (2 digits).
  `N+` | Minute (1 or 2 digits).
  `SS` | Second (2 digits).
  `S+` | Second (1 or 2 digits).
  `ZZZ` | Time Zone, for example, `GMT`, `EST`, `PST`, and so on.
  `ZZZZZ` | Time Difference (1 to 9 digits). For example, +04 denotes 4 hours ahead of UTC. Other examples include +4, +04, +0400, +0400 MSD (the string MSD is ignored). A further example is +030, in this case the time differences is interpreted as 30 minutes.
  `#PM` | AM or PM indicator (2 characters). For example, 2001/09/09 02:46:40 pm
  `#S` | A space

The following table shows some example date and time formats:

Date and time format string | Example date
--- | ---
`DD/MM/YYYY` | 09/05/2013
`D+ SHORTMONTH YYYY` | 2 Jan 2001
`D+ LONGMONTH YYYY HH:NN:SS ZZZZZ` | 17 August 2003 10:41:07 -0400

## Syntax

    convert_date_time( Input, InputFormatCSV, OutputFormat )

## Arguments

Argument | Description
--- | ---
`Input` | (string) The date and time to convert.
`InputFormatCSV` | (string) A comma-separated list of the possible date and time formats of the input.
`OutputFormat` | (string) The format of the date and time to output.

## Returns

(String). A string containing the date and time in the desired format.

Copyright 2025 Open Text
Version 25.2 | Last updated April 2025

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Product: Knowledge Discovery MongoDB Connector 25.2

Topic Title: convert_date_time