Moving from pgFouine to pgBadger Issue with Total query duration metric

Hi ,
I am moving from pgFouine to pgBadger. When I compare the reports I see
that there is major difference in time reported by metric *Total query
duration* for given same postgres server log file.( excuse me for not
sharing the postgres server logfile )
pgfouine reports around 2hrs where as pgBadger reports around 4hrs.

I am using below command options to execute the report. I am mainly
comparing pgBadger report with queries.html report

Appreciate your help on this ? wanted to know why there so much difference
in time ?

*pgFouine*

/home/postgres/fouine/pgfouine-1.2/pgfouine.php -logtype stderr -file
$filename -top 30 \
-report
/tmp/queries.html=overall,bytype,slowest,n-mosttime,n-mostfrequent,n-slowestaverage
\
-report /tmp/hourly.html=overall,hourly \
-report /tmp/errors.html=overall,n-mostfrequenterrors \
-database $1

*pgBadger*

perl pgbadger -t 30 --disable-session --disable-connection --disable-lock
--disable-temporary --disable-checkpoint --disable-autovacuum -o
pgbadger_out_3.html -d <DBNAME>
/home/postgres/postgresql-2018-01-11_000000.log

pgFouine => Overall statistics

· Overall statistics ^

- Number of unique normalized queries: 208
- Number of queries: 2,111
- Total query duration: 2h36m45s
- First query: 2018-01-11 00:01:06
- Last query: 2018-01-11 23:20:07
- Query peak: 6 queries/s at 2018-01-11 14:26:18
- Number of errors: 70,043
- Number of unique normalized errors: 19

pgBadger => Global Stats

Global Stats

- Queries
- Events
- Vacuums
- Temporary files
- Sessions
- Connections

- *207* Number of unique normalized queries
- *2,113* Number of queries
- *4h41m48s* Total query duration
- *2018-01-11 00:01:06* First query
- *2018-01-11 23:20:07* Last query
- *6 queries/s at 2018-01-11 17:41:30* Query peak

--
Regards
Sreekanth