• time
• localtime
• gmtime

# The year 19100

```
\$t = time();         # 1021924103
# returns a 10 digit long number,
# the number of seconds since 00:00:00 UTC, January 1, 1970

\$x = localtime(\$t);  # returns a string like           Thu Feb 30 14:15:53 1998
\$z = localtime();    # returns the string for the current time

\$z = localtime(time - 60*60*24*365);
# returns the string for a year ago, same time, well almost

@y = localtime(\$t);  # an array of time values:
# 53 15 14 30 1 98 4 61 0
# the 9 values are the following:

#  0    1    2     3     4    5     6     7     8    (the index)
(\$sec,\$min,\$hour,\$mday,\$mon,\$year,\$wday,\$yday,\$isdst) = localtime(time);

# The localtime function is aware of what is on the left side of the = sign !!!!

```
```
# OK but where does that 19100 come from ?
\$mon  0..11
\$min  0..59
\$sec  0..60
\$year YEAR-1900         # for example 2000-1900 = 100
# but people used  "19\$year"   instead of 1900 + \$year
# which is          19100      instead of 2000

```

gmtime is the same just gives the time as it is in Greenwich. The year of 19100