github.com/StackExchange/dnscontrol/v4@v4.11.0/pkg/js/parse_tests/012-duration/foo.com.zone (about)

     1  $TTL 300
     2  @                IN A     1.2.3.4
     3  a                IN A     1.2.3.5
     4  b          180   IN A     1.2.3.6
     5  c          10800 IN A     1.2.3.7
     6  d          259200 IN A    1.2.3.8