Value of column changes after changing the Date format in scala spark

Question

This is my data frame without data format

+---------------------+---------------+-------------------------+----------------+------------+-----+-----------+-------------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|Source_organizationId|Source_sourceId|FilingDateTime_1         |SourceTypeCode_1|DocumentId_1|Dcn_1|DocFormat_1|StatementDate_1          |IsFilingDateTimeEstimated_1|ContainsPreliminaryData_1|CapitalChangeAdjustmentDate_1|CumulativeAdjustmentFactor_1|ContainsRestatement_1|FilingDateTimeUTCOffset_1|ThirdPartySourceCode_1|ThirdPartySourcePriority_1|SourceTypeId_1|ThirdPartySourceCodeId_1|FFAction|!|_1|DataPartition_1|TimeStamp                |
+---------------------+---------------+-------------------------+----------------+------------+-----+-----------+-------------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|4295876589           |1              |1977-02-14T03:00:00+00:00|YUH             |null        |null |null       |1976-12-31T00:00:00+00:00|true                       |false                    |1976-12-31T00:00:00+00:00    |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:03:27+00:00|
|4295876589           |8              |1984-02-14T03:00:00+00:00|YUH             |null        |null |null       |1983-12-31T00:00:00+00:00|true                       |false                    |1983-12-31T00:00:00+00:00    |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T09:46:58+00:00|
|4295876589           |1              |1977-02-14T03:00:00+00:00|YUH             |null        |null |null       |1976-12-31T00:00:00+00:00|true                       |false                    |1976-12-31T00:00:00+00:00    |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:30:16+00:00|
+---------------------+---------------+-------------------------+----------------+------------+-----+-----------+-------------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+

This is waht i do to change in data format

val df2resultTimestamp = finalXmlDf.withColumn("FilingDateTime_1", date_format(col("FilingDateTime_1"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
      .withColumn("StatementDate_1", date_format(col("StatementDate_1"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
      .withColumn("CapitalChangeAdjustmentDate_1", date_format(col("CapitalChangeAdjustmentDate_1"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
      .withColumn("CumulativeAdjustmentFactor_1", regexp_replace(format_number($"CumulativeAdjustmentFactor_1".cast(DoubleType), 5), ",", ""))

This is the output I get where FilingDateTime_1 column value is changed

+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|Source_organizationId|Source_sourceId|FilingDateTime_1    |SourceTypeCode_1|DocumentId_1|Dcn_1|DocFormat_1|StatementDate_1     |IsFilingDateTimeEstimated_1|ContainsPreliminaryData_1|CapitalChangeAdjustmentDate_1|CumulativeAdjustmentFactor_1|ContainsRestatement_1|FilingDateTimeUTCOffset_1|ThirdPartySourceCode_1|ThirdPartySourcePriority_1|SourceTypeId_1|ThirdPartySourceCodeId_1|FFAction|!|_1|DataPartition_1|TimeStamp                |
+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|4295876589           |1              |1977-02-14T08:30:00Z|YUH             |null        |null |null       |1976-12-31T05:30:00Z|true                       |false                    |1976-12-31T05:30:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:03:27+00:00|
|4295876589           |8              |1984-02-14T08:30:00Z|YUH             |null        |null |null       |1983-12-31T05:30:00Z|true                       |false                    |1983-12-31T05:30:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T09:46:58+00:00|
|4295876589           |1              |1977-02-14T08:30:00Z|YUH             |null        |null |null       |1976-12-31T05:30:00Z|true                       |false                    |1976-12-31T05:30:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:30:16+00:00|
+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+

The value should be 1984-02-14T03:00:00Z

I dont know what i am missing here ..

Answer 1

All you need is addition to_timestamp inbuilt function as below

val df2resultTimestamp = df.withColumn("FilingDateTime_1", date_format(to_timestamp(col("FilingDateTime_1"), "yyyy-MM-dd'T'HH:mm:ss"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
  .withColumn("StatementDate_1", date_format(to_timestamp(col("StatementDate_1"), "yyyy-MM-dd'T'HH:mm:ss"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
  .withColumn("CapitalChangeAdjustmentDate_1", date_format(to_timestamp(col("CapitalChangeAdjustmentDate_1"), "yyyy-MM-dd'T'HH:mm:ss"), "yyyy-MM-dd'T'HH:mm:ss'Z'"))
  .withColumn("CumulativeAdjustmentFactor_1", regexp_replace(format_number($"CumulativeAdjustmentFactor_1".cast(DoubleType), 5), ",", ""))

which should give you the correct output as

+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|Source_organizationId|Source_sourceId|FilingDateTime_1    |SourceTypeCode_1|DocumentId_1|Dcn_1|DocFormat_1|StatementDate_1     |IsFilingDateTimeEstimated_1|ContainsPreliminaryData_1|CapitalChangeAdjustmentDate_1|CumulativeAdjustmentFactor_1|ContainsRestatement_1|FilingDateTimeUTCOffset_1|ThirdPartySourceCode_1|ThirdPartySourcePriority_1|SourceTypeId_1|ThirdPartySourceCodeId_1|FFAction|!|_1|DataPartition_1|TimeStamp                |
+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+
|4295876589           |1              |1977-02-14T03:00:00Z|YUH             |null        |null |null       |1976-12-31T00:00:00Z|true                       |false                    |1976-12-31T00:00:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:03:27+00:00|
|4295876589           |8              |1984-02-14T03:00:00Z|YUH             |null        |null |null       |1983-12-31T00:00:00Z|true                       |false                    |1983-12-31T00:00:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T09:46:58+00:00|
|4295876589           |1              |1977-02-14T03:00:00Z|YUH             |null        |null |null       |1976-12-31T00:00:00Z|true                       |false                    |1976-12-31T00:00:00Z         |0.82457                     |false                |540                      |SS                    |1                         |3013057       |1000716240              |I|!|         |Japan          |2018-05-03T07:30:16+00:00|
+---------------------+---------------+--------------------+----------------+------------+-----+-----------+--------------------+---------------------------+-------------------------+-----------------------------+----------------------------+---------------------+-------------------------+----------------------+--------------------------+--------------+------------------------+-------------+---------------+-------------------------+