Good afternoon,

I have a column within one of my tables that is stamped with a UNIX timestamp. I would like to have the return in my current timezone, PST. I have the following query and the below error is being returned. Any help would be greatly appreciated as I'm not sure if I am missing something simple, or way off base.

select TO_TIMESTAMP_TZ (('1970-01-01','YYYY-DD-MM;) + NUMTODSINTERVAL (table_name,'SECOND'),'UTC')) at time zone 'PST' 
from column_name

ORA-00907:missing right parenthesis
00907.00000 - "missing right parenthesis"
Error at Line 16 Column:37. 

1 Answer 1


Your code has a few syntax issues, try one of these:

select (
    TIMESTAMP '1970-01-01 00:00:00 UTC' 
       + NUMTODSINTERVAL(column_name, 'SECOND')
    ) at time zone 'PST' 
from table_name

select (
   TO_TIMESTAMP_TZ('1970-01-01 UTC', 'YYYY-DD-MM TZR') 
      + NUMTODSINTERVAL(column_name,'SECOND')
   ) at time zone 'PST' 
from table_name

select (
   FROM_TZ(TO_TIMESTAMP('1970-01-01', 'YYYY-DD-MM'), 'UTC')    
      + NUMTODSINTERVAL(column_name,'SECOND')
   ) at time zone 'PST' 
from table_name

Be aware, PST is ambiguous. Better use IANA time zone names:


|TZNAME                |TZABBREV|
|America/Bahia_Banderas|PST     |
|America/Boise         |PST     |
|America/Creston       |PST     |
|America/Dawson        |PST     |
|America/Dawson_Creek  |PST     |
|America/Ensenada      |PST     |
|America/Hermosillo    |PST     |
|America/Inuvik        |PST     |
|America/Juneau        |PST     |
|America/Los_Angeles   |PST     |
|America/Mazatlan      |PST     |
|America/Metlakatla    |PST     |
|America/Santa_Isabel  |PST     |
|America/Sitka         |PST     |
|America/Tijuana       |PST     |
|America/Vancouver     |PST     |
|America/Whitehorse    |PST     |
|Canada/Pacific        |PST     |
|Canada/Yukon          |PST     |
|Mexico/BajaNorte      |PST     |
|Mexico/BajaSur        |PST     |
|Pacific/Pitcairn      |PST     |
|PST                   |PST     |
|PST8PDT               |PST     |
|US/Pacific            |PST     |
|US/Pacific-New        |PST     |
  • I appreciate the assistance. Using both the second and third solutions you provided I am never receiving a ORA-30084 invalid data type for datatime primary with time zone modifier error.
    – tdavidson
    Apr 21, 2023 at 14:47
  • For me all three statements are working. Check your code for typo Apr 21, 2023 at 14:59
  • Could it possibly be because the original column is a number data_type?
    – tdavidson
    Apr 21, 2023 at 15:21
  • Which column should be number data type? Apr 21, 2023 at 15:22
  • The column I am converting from UTC is originally in a number datatype and the end goal is to convert from number datatype (unix timestamp) to UTC datetime, then to PST datetime.
    – tdavidson
    Apr 21, 2023 at 15:23

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