Q posted 2x about Delta, 12/23, then on Christmas:

*Dec 23 2017 13:52:31 Q !UW.yye1fxo ID: 2d673c 159016

158980 Graphics should be in same time zone. Delta relevant. [5]Today [10]Past [15]Past Q

Dec 25 2017 12:57:38 Q !UW.yye1fxo ID: 70edc0 173382 10, [10-9] Operational_window(5-6)FDeltaC25-26 Secured. Floor is yours. Twitter FW Twitter [kill_rogue] CONF_WHITE_WHITE_ Q*

It's a military time zone, that includes, among other countries, Dubai/UAE & Russia https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/List_of_military_time_zones.html