TIEGCM file list start and end dates and times
s001.nc  Date: 2018-09-23  Time: 00:20:00    Date: 2018-09-23  Time: 08:00:00
s002.nc  Date: 2018-09-23  Time: 08:20:00    Date: 2018-09-23  Time: 16:00:00
s003.nc  Date: 2018-09-23  Time: 16:20:00    Date: 2018-09-24  Time: 00:00:00
s004.nc  Date: 2018-09-24  Time: 00:20:00    Date: 2018-09-24  Time: 08:00:00
s005.nc  Date: 2018-09-24  Time: 08:20:00    Date: 2018-09-24  Time: 16:00:00
s006.nc  Date: 2018-09-24  Time: 16:20:00    Date: 2018-09-25  Time: 00:00:00
s007.nc  Date: 2018-09-25  Time: 00:20:00    Date: 2018-09-25  Time: 08:00:00
s008.nc  Date: 2018-09-25  Time: 08:20:00    Date: 2018-09-25  Time: 16:00:00
s009.nc  Date: 2018-09-25  Time: 16:20:00    Date: 2018-09-26  Time: 00:00:00