[#OPENSSL_gmtime_adj]
= OPENSSL_gmtime_adj
:mrdocs:

Add a day/second offset to a UTC struct tm in place.

== Synopsis

Declared in `<openssl/crypto.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OPENSSL_gmtime_adj(
    tm* tm,
    int offset_day,
    long offset_sec);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tm*
| Time value to adjust (UTC).
| *offset_day*
| Number of days to add (may be negative).
| *offset_sec*
| Number of seconds to add (may be negative).
|===


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