# otp.Operation.dt.date_name #### \_DtAccessor.date_name(date_part, timezone) Returns a number representing the specified `date_part` of the specified datetime, interpreted in the specified `timezone`. * **Parameters:** * **date_part** ([*str*](https://docs.pip.distribution.sol.onetick.com/api/operation/str/root.html.md#onetick.py.Operation.str) *|* [*Operation*](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Operation) *|* [*Column*](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Column)) -- Possible values are: : `year`, `quarter`, `month`, `week`, `weekday`, `day`, `dayofyear`, `hour`, `minute`, `second`, `millisecond`, `nanosecond`. * **timezone** ([*str*](https://docs.pip.distribution.sol.onetick.com/api/operation/str/root.html.md#onetick.py.Operation.str) *|* [*Operation*](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Operation) *|* [*Column*](https://docs.pip.distribution.sol.onetick.com/api/operation/root.html.md#onetick.py.Column)) -- Name of the timezone, an operation or a column with it. By default, the timezone of the query will be used. ### Examples ```pycon >>> data = otp.Ticks(X=[otp.dt(2020, 11, 11, 5, 4, 13, 101737, 879)] * 12, ... DATE_PART=['year', 'quarter', 'month', ... 'week', 'weekday', 'day', 'dayofyear', ... 'hour', 'minute', 'second', ... 'millisecond', 'nanosecond']) >>> data['DATE_NAME'] = data['X'].dt.date_name(data['DATE_PART']) >>> otp.run(data)[['X', 'DATE_NAME', 'DATE_PART']] X DATE_NAME DATE_PART 0 2020-11-11 05:04:13.101737879 2020 year 1 2020-11-11 05:04:13.101737879 4 quarter 2 2020-11-11 05:04:13.101737879 11 month 3 2020-11-11 05:04:13.101737879 46 week 4 2020-11-11 05:04:13.101737879 3 weekday 5 2020-11-11 05:04:13.101737879 11 day 6 2020-11-11 05:04:13.101737879 315 dayofyear 7 2020-11-11 05:04:13.101737879 5 hour 8 2020-11-11 05:04:13.101737879 4 minute 9 2020-11-11 05:04:13.101737879 13 second 10 2020-11-11 05:04:13.101737879 0 millisecond 11 2020-11-11 05:04:13.101737879 0 nanosecond ``` #### SEE ALSO **DATENAME** OneTick function