To aid the discussion of the TZ environment variable, here's a list of the time zone abbreviations that currently show up in binary time zone files if you do a "make install". (I'll put in a vote for changing the mixed-case "ChST" to a mono-case "CHST".) --ado ?? ACT ADT AFT AMT ANT AOT APT ART AST AWT AZT BDT BMT BNT BOT BRT BST BTT CAT CCT CDT CET CGT CIT CJT CKT CLT CMT COT CPT CST CUT CVT CWT CXT DMT EAT ECT EDT EET EGT EIT EPT EST EWT FJT FKT FMT FNT GET GFT GMT GST GYT HDT HKT HMT HPT HST HWT ICT IDT IMT IOT IST JMT JST KDT KGT KMT KST LKT LMT LRT LST MDT MET MHT MMT MOT MPT MSD MSK MST MUT MVT MWT MYT NCT NDT NET NFT NMT NPT NRT NST NUT NWT PDT PET PGT PHT PKT PMT PNT PPT PST PWT PYT QMT RET RMT SBT SCT SGT SMT SRT SST TFT TJT TKT TMT TOT TPT TRT TVT UCT UTC UYT UZT VET VUT WAT WET WFT WGT WIT WMT WST YDT YPT YST YWT zzz ACST ADDT ADMT AHDT AHST AKDT AKST AKTT ALMT AMST ANAT AQTT ARST ASHT AZOT AZST BAKT BDST BEAT BORT BOST BRST BURT CANT CAST CAWT CDDT CEMT CEST CGST CHAT CHDT CHOT ChST CLST COST CVST DACT DAVT DDUT DUST EAST EDDT EEST EGST EHDT FFMT FJST FKST FNST FORT FRUT GALT GAMT GBGT GEST GHST GILT HADT HAST HKST HOVT IDDT IHST IRDT IRKT IRST ISST JAVT KART KAST KGST KIZT KOST KRAT KUYT KWAT LHST LINT LONT MADT MAGT MALT MART MAWT MDDT MDST MEST MOST NCST NDDT NEGT NEST NOVT NZDT NZMT NZST OMST ORAT PDDT PEST PETT PHOT PHST PKST PMDT PMST PONT PPMT PYST QYZT ROTT SAKT SAMT SAST SDMT SHET SJMT SLST SVET SWAT SYOT TAHT TAST TBIT TBMT TOST TRST TRUT ULAT URAT URUT UYST UZST VLAT VOST VUST WAKT WART WAST WEMT WEST WGST YAKT YAPT YDDT YEKT YERT AKTST ALMST ANAST AQTST ASHST AZOMT AZOST BAKST BEAUT CHADT CHAST CHOST CKHST DUSST EASST FRUST GMT+1 GMT+2 GMT+3 GMT+4 GMT+5 GMT+6 GMT+7 GMT+8 GMT+9 GMT-1 GMT-2 GMT-3 GMT-4 GMT-5 GMT-6 GMT-7 GMT-8 GMT-9 HOVST IRKST KIZST KRAST KUYST MADMT MADST MAGST MALST NOVST OMSST ORAST PETST QYZST SAKST SAMST SHEST SVEST TASST TBIST ULAST URAST UYHST VLAST WARST YAKST YEKST YERST BORTST GMT+10 GMT+11 GMT+12 GMT-10 GMT-11 GMT-12 GMT-13 GMT-14 VLASST Local time zone must be set--see zic manual page