Effect Duration

Effects with a set duration that can be extended

Effect Source	Base Duration
Bestial Wrath	15 seconds
Black Dragon's Ire	15 seconds
Channeler's Boon	30 seconds
Leydia Enchantment	60 seconds
Lightning Stomp	15 seconds
Pilgrim's Enchantment	60 seconds
Stone Flesh	20 seconds
Velka's Grace	15 seconds
Wheel of Fate (2)*	15 seconds
Runic Seal	5 seconds
Magic Weapon	90 seconds
Great Magic Weapon	60 seconds
Crystal Magic Weapon	30 seconds
Frozen Weapon	60 seconds
Magic Shield	60 seconds
Great Magic Shield	30 seconds
Supreme Magic Shield	120 seconds
Hidden Weapon	120 seconds
Hidden Body	60 seconds
Cast Light	60 seconds
Spook	60 seconds
Iron Flesh	15 seconds
Flash Sweat	30 seconds
Black Flame Arc	60 seconds
Carthus Flame Arc	60 seconds
Power Within*	30 seconds
Profuse Sweat	60 seconds
Carthus Beacon	30 seconds
Replenishment*	60 seconds
Bountiful Sunlight*	60 seconds
Bountiful Light*	60 seconds
Magic Barrier	60 seconds
Great Magic Barrier	60 seconds
Sacred Oath	60 seconds
Heavenly Relief	60 seconds
Lightning Blade	60 seconds
Darkmoon Blade	60 seconds
Dark Blade	60 seconds
Blessed Weapon*	60 seconds
Deep Protection	60 seconds
Pulsating Blade	60 seconds
Pungent Blade	60 seconds
Rockflesh	30 seconds
Lifegem*	30 seconds
Radiant Lifegem*	30 seconds
Old Radiant Lifegem*	30 seconds
Elizabeth Mushroom*	30 seconds
Dried Root*	300 seconds
Brightbug	60 seconds
Old Growth Balm	300 seconds
Vine Balm	300 seconds
Blackweed Balm	300 seconds
Goldenfruit Balm	300 seconds
Soul of a Fallen Astrologer	30 seconds
Soul of a Fallen Berserker	30 seconds
Soul of a Fallen Champion	30 seconds
Soul of a Fallen Paladin	30 seconds
Soul of a Fallen Sage	30 seconds
Soul of a Fallen Sentinel	30 seconds
Soul of a Fallen Warrior	30 seconds
Bloodthirsty Grass Dew*	120 seconds

*Extending their duration won't change their HP and FP loss/gains, but each tick will be slowed down.

Duration extending equipment

Item	Duration Boost
Caitha's Chime	+100%
Moonlight Set	+100%
Shira's Set	+100%
Black Witch Veil	+25%
Lingering Dragoncrest Ring	+100/120/140/160/180/200%

Information here is accurate for version 2.15.