ToE H5/HoF
Weeks of Nothing
Week of Deadly CalmA week when nothing really happens.
Week of ToadIf a young girl should dare kiss a frog during this week, it is said that she will be married within a year.
Week of HenA week when you should watch your step.
Week of DragonflyA week when it impossible to have a quiet lakeside fishing session.
Week of FoxNot a good week to be a chicken.
Week of RabbitNot a good week to be a carrot.
Week of SquirrelNot a good week to be a hazelnut.
Week of CaterpillarA week when the Elves organise a great meal, after which they do a traditional dance.
Week of HamsterWeekly Hamster and Berserk Combat Hamster production doubles.
Week of PigeonA week when all statues must be cleaned daily.
Week of WorryThe week of the final exams of the Silver Cities' Apprentice Magicians.
Week of BeeChildren's favourite week; hives produce three times the usual amount of honey.
Week of PoppyA week during which you are expected to offer wild flowers to your neighbours.
Week of SwanA week when swans dance at lakes.
Week of ButterflyA week which often has sudden storms.
Week of AntelopeThe lions' favourite week.
Week of RavenThe week when the contest for the best scarecrow is held.
Week of BeaverNot a good week to be a tree.
Week of FlamingoNot a good week to be a prawn.
Week of TortoiseA week when everyone take things slowly.
Week of LynxNot a good week to be a rabbit.
Week of PenguinA good week for marching (if you're an Emperor).
Week of FalconA week when it would be wise to keep a watch on what is happening over one's head.
Week of HedgehogThe week when hedgehogs have right of way on the roads.
Week of SparrowNot a good week to be a worm.
Week of LionNot a good week to be an antelope.
Week of DeerThe week of hunting contest.
Week of OwlA good week for night flights.
Week of WyrmA week when the weekly Wyrm production used to double, before they were totally exterminated.
Week of TigerA perfect week for finding a new bedspread.
Resources Production
Week of FestivalsGold, Ore and Wood income from towns and mines is halved. No income for Sulfur, Gems, Mercury and Crystals.
Week of JewelsDouble Gem and Crystal income.
Week of AlchemyDouble income of Mercury and Sulfur.
Week of GoldDouble Gold income from all sources.
Week of HarvestDouble Wood and Ore income.
Adventuring
Week of FlameDouble growth for Rune Priests, Rune Patriarches and Flame Keepers. Movement of all heroes increased by 50%.
Week of WindsSea movement of all heroes increased by 50%.
Week of FollyExperience gained from battles halved.
Week of HonorExperience gained from battles doubled.
Week of DiplomacyAll neutral creatures that usually join for money will join for free.
Week of ForgeryCost of creature upgrade halved.
Week of TradePrices for artefacts halved. Prices for resource exchange halved.
Week of MeditationMana regeneration rate doubled.
In Combat
Week of IdlenessInitiative for all creatures from Haven, Sylvan, Academy and Fortress factions reduced by 20% during battles.
Week of CalmInitiative of all creatures from Necropolis, Inferno, Dungeon and Stronghold factions reduced by 20% during battles.
Week of FeeblenessDefense of all creatures from Haven, Sylvan, Academy and Fortress factions reduced by 20% during battles.
Week of InfirmityDefense for all creatures from Necropolis, Inferno and Dungeon and Stronghold factions reduced by 20% during battles.
Week of SorrowMorale and luck for all creatures from Haven, Sylvan, Academy and Fortress factions reduced by 2 during battles.
Week of LightLuck and morale for all creatures from Necropolis, Inferno and Dungeon and Stronghold factions reduced by 2 during battles.
Week of HopeDuring battles morale and luck for all creatures increased by 1.
Week of BalanceMorale and luck negated during battles.
Week of ToughnessHit points of all creatures increased by 20% during battles.
Week of Might'n'MagicNon-magic damage increased by 50% and spell cost halved during battles.
Week of MightNon-magic damage increased by 50% during battles.
Week of MagicSpell cost halved during battles.
Week of EtherSpell cost doubled.
Week of ChaosSpell damage increased by 50% during battles.
Week of Fire and IceFire and ice spells deal double damage during battles.
Week of WaterIce spell damage increased by 50% during battle. Amount of summoned Water Elementals increases by 50%.
Week of FireFire spell damage increased by 50% during battles. Amount of summoned Fire Elementals increases by 50%.
Week of EarthEarth spell damage increased by 50% during battles. Amount of summoned Earth Elementals increases by 50%.
Week of AirAir spell damage increased by 50% during battles. Amount of summoned Air Elementals increases by 50%.
Week of EvocationSkill level of all Destructive Magic spells increased to maximum during battles.
Week of AbjurationSkill level of all Light Magic spells increased to maximum during battles.
Week of AlterationSkill level of all Dark Magic spells increased to maximum during battles.
Week of ConjurationSkill level of all Summoning Magic spells increased to maximum during battles.
General Creature Growth
Week of PlagueCreatures in all dwellings die. No growth for all creatures.
Week of DiseaseTwo thirds of creatures in all dwellings die (minimum remaining is one). Only one third of growth for all creatures.
Week of FeverHalf of creatures in all dwellings die (minimum remaining is one). Only half of growth for all creatures.
Week of LifeDouble growth for all creatures.
Week of ConjunctionTriple growth for all creatures. Triple income of all resources from mines and towns.
Creatures' Weeks
Week of PeasantDouble growth for Peasants, Conscripts and Brutes.
Week of ArcherDouble growth for Archers, Marksmen and Crossbowmen.
Week of FootmanDouble growth for Footmen, Swordsmen and Vindicators.
Week of GriffinDouble growth for Griffins, Imperial Griffins and Battle Griffins.
Week of PriestDouble growth for Priests, Inquisitors and Zealots.
Week of CavalierDouble growth for Cavaliers, Paladins and Champions.
Week of AngelDouble growth for Angels, Archangels and Seraphs.
Week of GremlinDouble growth for Gremlins, Master Gremlins and Saboteur Gremlins.
Week of GargoyleDouble growth for Gargoyles, Obsidian Gargoyles and Elemental Gargoyles.
Week of GolemDouble growth for Iron Golems, Steel Golems and Magnetic Golems.
Week of MagiDouble growth for Mages, Archmages and Battle Mages.
Week of DjinnDouble growth for Djinns, Djinn Sultans and Djinn Viziers.
Week of RakshasaDouble growth for Rakshasa Rani, Rakshasa Raja and Rakshasa Kshatra.
Week of ColossusDouble growth for Colossi, Titans and Storm Titans.
Week of PixieDouble growth for Pixies, Sprites and Dryads.
Week of War DancerDouble growth for Blade Dancers, War Dancers and Wind Dancers.
Week of HunterDouble growth for Hunters, Master Hunters and Arcane Archers.
Week of DruidDouble growth for Druids, Druid Elders and High Druids.
Week of UnicornDouble growth for Unicorns, Silver Unicorns and Pristine Unicorns.
Week of TreantDouble growth for Treants, Ancient Treants and Savage Treants.
Week of Green DragonDouble growth for Green, Emerald and Crystal Dragons.
Week of ImpDouble growth for Imps, Familiars and Vermins.
Week of DemonDouble growth for Demons, Horned Demons and Horned Grunts.
Week of HellhoundDouble growth for Hell Hounds, Cerberi and Firehounds.
Week of SuccubusDouble growth for Succubi and Succubus Mistresses and Succubus Seducers.
Week of NightmareDouble growth for Hell Chargers, Nightmares and Hell Stallions.
Week of Pit LordDouble growth for Pit Fiends, Pit Lords and Pit Spawns.
Week of DevilDouble growth for Devils, Archdevils and Arch Demons.
Week of AssassinDouble growth for Scouts, Assassins and Stalkers.
Week of WitchDouble growth for Blood Maidens, Blood Furies and Blood Sisteres.
Week of MinotaurDouble growth for Minotaurs, Minotaur Guards and Minotaur Taskmasters.
Week of RaiderDouble growth for Grim Raiders, Dark Raiders and Brisk Raiders.
Week of HydraDouble growth for Hydras, Chaos Hydras and Foul Hydras.
Week of MatronDouble growth for Shadow Witches, Shadow Matriarchs and Shadow Mistresses.
Week of DragonDouble growth for Shadow Dragons, Black Dragons and Red Dragons.
Week of SkeletonDouble growth for Skeletons, Skeleton Archers and Skeleton Warriors.
Week of Walking DeadDouble growth for Zombies, Plague Zombies and Rot Zombies.
Week of WightDouble growth for Ghosts, Spectres and Poltergeists.
Week of VampireDouble growth for Vampires, Vampire Lords and Vampire Prince.
Week of LichDouble growth for Liches, Archliches and Lich Masters.
Week of WightDouble growth for Wights, Wraiths and Banshees.
Week of Bone DragonDouble growth for Bone Dragons, Spectral Dragons and Ghost Dragons.
Week of DefenderDouble growth for Defenders, Shieldguards and Mountain Guards.
Week of SpearsDouble growth for Spearwielders, Skirmishers and Harpooners.
Week of BearDouble growth for Bear Riders, Blackbear Riders and Whitebear Riders.
Week of RageDouble growth for Brawlers, Berserkers and Battleragers.
Week of FlameDouble growth for Rune Priests, Rune Patriarches and Flame Keepers. Movement of all heroes increased by 50%.
Week of ThaneDouble growth for Thanes, Flame Lords and Thunder Thanes.
Week of SalamanderDouble growth for Fire Dragons, Magma Dragons and Lava Dragons.
Week of GoblinDouble growth for Goblins, Goblin Trappers and Goblin Witch-Doctors.
Week of CentaurDouble growth for Centaurs, Centaurs Nomads and Centaurs Marauders.
Week of OrcDouble growth for Warriors, Maulers and Warmongers.
Week of ShamanDouble growth for Shamans, Sky Daughters and Earth Daughters.
Week of ChieftainDouble growth for Slayers, Executioners and Chieftains.
Week of WyvernDouble growth for Wyverns, Foul Wyverns and Paokais.
Week of CyclopsDouble growth for Cyclops, Untamed Cyclops and Bloodeyed Cyclops.
This information comes from the Heroes V release version (v3.0).

Thanks to sfidanza for the work on this page.
Thanks to ThE_HyDrA for creating and looking after the Heroes 5 section of Age of Heroes!