Results for “Dates & numeric validation”
Small, practical examples. Search by task or narrow things down below.
Convert a duration to hours and minutes
Python: Use divmod to split nonnegative whole seconds into display components.
Python✓ Tested
Convert a timestamp to a different fixed offset
C#: ToOffset changes the displayed local time while retaining the same instant.
C#✓ Tested
Convert a Unix timestamp to aware UTC
Python: Supply timezone.utc so the result does not depend on the machine time zone.
Python✓ Tested
Convert a Unix timestamp to UTC
Linux Commands: Use the @ syntax with GNU date for seconds since the Unix epoch.
Linux Commands✓ Tested
Convert an aware datetime to another offset
Python: Use astimezone for conversion; replacing tzinfo alone does not convert an instant.
Python✓ Tested
Convert an instant to a regional timezone
Java: Use ZonedDateTime with a named zone to apply that zone’s offset rules.
Java✓ Tested
Convert ASCII text to lowercase safely
C++: Cast each byte to unsigned char before using the cctype function.
C++✓ Tested
Convert epoch seconds into an instant
Java: Instant represents a UTC timeline point independent of the default timezone.
Java✓ Tested
Convert hexadecimal text to bytes
Python: Use bytes.fromhex for a readable byte representation and hex for the reverse conversion.
Python✓ Tested
Convert Unix seconds to an offset-aware timestamp
C#: DateTimeOffset preserves the UTC offset explicitly.
C#✓ Tested
Convert Unix seconds to UTC
Convert Unix seconds to UTC using a complete Go program with explicit sample inputs.
Go✓ Tested
Copy a file with explicit permissions
Linux Commands: Use install to create parent directories and set the destination mode in one operation.
Linux Commands✓ Tested