Date Timezone Oracle PLSQL

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  4. Calculating the number of days of summer in June, Last_Date function
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SQL> -- Calculating the number of days of summer in June.
SQL> SELECT LAST_DAY('20-JUN-97') "Last_Day", LAST_DAY('20-JUN-97') - TO_DATE('20-JUN-97') "Days_Summer" from DUAL;
Last_Day  Days_Summer
--------- -----------
30-JUN-97          10
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